Category: Guns

Ballistic Monte Carlo Methods

This is a paragraph I never thought I’d see in the academic literature:

“[W]e advocate the use of ballistic-assisted (i.e. projectile-based) random sampling methods because they are both easily accessible and parallelizable. In particular, shotgun-assisted random sampling seems very suitable becaues of the presumed abundance of shotguns in cataclysmic times and the speed at which they can generate samples.”

– Vincent Dumoulin, F?lix Thouin – “A Ballistic Monte Carlo Approximation of ?“

Awesome. That’d make for an amazing grant application.
See here for a summary article that explains things for non-mathematicians.
Edit: Somehow I borked the initial post by forgetting the title and screwing up a link. I’ve now corrected these errors. If you’re still seeing those errors in your feed reader, please refresh the feed.

Bill Maher: “Why Doesn’t The Democratic Party Come Out Against The Second Amendment?”

From Real Clear Politics, National Review, and Sebastian comes this gem:

ELLISON (D-MN): I mean, 27 children were mowed down. Isn’t that enough for us? One of our colleagues, [former Congresswoman] Gabby Giffords, shot in the face.
MAHER: Then why doesn’t your party come out against the Second Amendment? It’s the problem.
ELLISON: I sure wish they would. I sure wish they would.
MAHER: Really? Because I never hear anybody in the Democratic party say that. But they say, ‘I am also a strong supporter.’

I expect Maher to say something like that, but I’m surprised that a US Representative who has taken the Oath of Office to “support and defend the Constitution of the United States” would be so forthright.
Immediately following the above exchange, Rep. Ellison encourages Maher (and the audience) to “[c]heck out the progressive caucus. We have come out very strong for common-sense gun safety rules.” to which Maher replies, “Common-sense gun safety is bullshit.”
For once, I agree with Maher as he defines “common-sense gun safety” as, “It means there are 3,000 types of guns available in the U.S. and you want to ban about 200 of them. […] It’s not going to change anything.”
Rep. Ellison replies, “No, what it means is that if you want to have grandpa’s shotgun, have it, but get rid of those crazy military-style assault weapons. […] You can’t solve the problem with just one little thing. You’ve got to make sure that the CDC can issue reports on gun killings and hand gun violence. You’ve got to make sure that we can get rid of assault weapons. You’ve got to close the loophole at gun shows.”
Wow.
If you are interested in seeing your blood pressure rise, click the links and see the video.

Skepticism on Anti-Gun Studies

I’m a bit skeptical on a new study. The BBC says,

Researchers claim a new study provides some of the most compelling evidence yet for tighter gun controls in the US.
The team followed the consequences of the State of Missouri repealing its permit-to-purchase handgun law in 2007.
The law had required purchasers to be vetted by the local sheriff and to receive a licence before buying a gun.
Reporting soon in the Journal of Urban Health, the researchers will say that the repeal resulted in an immediate spike in gun violence and murders.
The study links the abandonment of the background check to an additional 60 or so murders occurring per year in Missouri between 2008 and 2012.

This seems a bit strange to me: gun buyers are still required to undergo a NICS check at the gun dealer (even if they don’t need to get a permit from the sheriff, who also presumably runs the buyer through NICS), so how would doing away with a duplicate check and permit from the local sheriff result in an increase in gun murders?

The team said it took account of changes that occurred in policing levels and incarceration rates, trends in burglaries, and statistically controlled for other possible confounding factors such as shifts in unemployment and poverty.
The team counted a doubling of handguns shortly after sale being recovered from scenes of crimes or from criminals.

Interesting, though I wonder how they define “shortly after sale”. The article does not mention if the handguns being traced were originally purchased in Missouri or brought in from other states. Also, it doesn’t mention how they were able to get access to trace data in the first place, what with the Tiahrt Amendment still being in effect.
According to the article, the study was conducted by “Prof Daniel Webster, director of the Johns Hopkins Center for Gun Policy and Research.” I note that they forgot a key part of the research center’s name: the proper name is the “Johns Hopkins Bloomberg Center for Gun Policy and Research”.
Being a scientist myself I’m a big fan of science, but I’m skeptical of research produced by think-tanks, particularly those with major funding from a heavily-biased source.
Either way, the study is irrelevant: owning a gun is a Constitutionally-protected right. Requiring a permit or license to exercise any right, even if such permit or license is routinely granted, is wrong, period.

America currently has more than 300 million handguns in circulation. But the issue of gun control remains a hugely contentious one.

I was under the impression that the US had somewhat more than 300 million guns of all types, not just handguns. This was probably just an editing error on the part of the BBC.

Great news from California!

As the Washington Post reports,

A divided federal appeals court on Thursday struck down California?s concealed-weapons rules, saying they violate the Second Amendment right to bear arms.
By a vote of 2 to 1, the three-judge panel of the U.S. Circuit Court of Appeals for the 9th Circuit said California was wrong to require applicants to show good cause to receive a permit to carry a concealed weapon.

Outstanding. I was born and raised in California and the restrictive gun laws there always chafed a bit (though I later moved to Arizona, where things were better). Although the gun laws in CA have ratcheted ever-more-restrictive over the years (“assault weapons” ban, .50 BMG ban, etc.) it’s nice to see a combo-breaker in the form of this case.
Honestly, this decision (and the recent one out of Illinois that struck down the prohibition on carry) is something I did not expect: I’ve been so used to states like California having increasingly restrictive gun laws, even in the wake of Heller and McDonald, that I more or less gave up hope for those states. I am pleasantly surprised and, to paraphrase Sebastian, I hope this is a step in bringing certain states back to America.
I will also join in with everyone else congratulating Clayton Cramer for having two of his law review articles cited by the court.
Although court decisions like this one are baby steps, they’re steps in the right direction and lay down a good legal precedent for the future.
Update 1: Bob Owens has some choice quotes from the decision here.
Naturally, the Brady Campaign is not happy. They statement claims that, “Neither history or precedent supports this aberrant, split decision that concocts a dangerous right of people to carry hidden handguns in public places to people whom law enforcement has determined that they have no good cause or qualifications to do so.”, which is somewhat strange since the court has, in support of its decision, cited numerous historical and legal precedents. Do the Brady’s offer any sort of citations to legal precedent, court decisions, or historical claims in support of their position? No, they go straight to emotional arguments: “The parents of Jordan Davis and Trayvon Martin, whose children were killed by licensed concealed-carry holders, could educate the Court about the real dangers posed by this legal error.” That’s pretty weaksauce, even for the Brady’s.

Detroit police chief reiterates pro-CCW stance

From The Detroit News:

Police Chief James Craig responded Thursday to a citizen who criticized his pro-gun stance by reiterating his opinion that ?good citizens? who legally carry firearms could help deter violent crime.
[…]

Craig stressed that he doesn?t support vigilantism.

?This is not often talked about: responsibility,? he said. ?I do not condone vigilantism. I don?t support individuals arming themselves and doing the work of police officers. Police officers are trained to enforce the law. I think you put people at risk when you have people that are out playing police. I do see that a concealed weapon is an opportunity for self-protection only; not to go out and enforce the law.?

After Thursday?s meeting, Police Commissioner Lisa Carter and her husband, Tyrone Carter ? both former police officers ? said they agreed with Craig.

?There are a lot of seniors in Detroit who are victims,? Tyrone Carter said. ?It?s not vigilantism for people to protect themselves.?

Added Lisa Carter: ?That?s all we?re talking about: The right for people to be able to protect themselves.?

Excellent.

On Useless Laws

Slashdot user MBGMorden has written one of the most concise, insightful summaries of why gun control laws are essentially useless. I’ve reproduced their post here for posterity:

 

Murder is against the law, and rightfully so, but that’s because the actual act being outlawed is exactly what you want to prevent. Once a murder has occurred grave harm (literally) has already occurred to another party. Same with theft. Same with rape. Same with assault.
See, all those things are directly harmful to another individual. Making laws against them certainly won’t ever stop such crimes from being committed at all, but it will reduce the frequency.
The issue with plastic guns (or gun laws in general) is that the very act of having a gun isn’t harmful. You can do harmful things with it, but just having one doesn’t cause any harm in and of itself. The people that would use those guns to harm another person are already willing to break laws to do so – laws with much stiffer legal consequences.
Think of the number of guns in the US. There are more guns in this country than there are people. The VAST majority of them are never used in a harmful way, and the vast majority of gun owners are law abiding citizens. Passing gun laws affects most of them (because most of them actually follow the laws), but it does nothing for the tiny fraction of them that do not adhere to the law anyways, and those were the ones you really needed to worry about.
Its not that laws in general are useless – merely that laws that exist solely as an attempt to keep someone from breaking another law are useless.
 

Emphasis mine. That last line sums things up quite nicely.

Veterans for Responsible Solutions: a new anti-gun astroturf group

So, Mark Kelly and Gabby Giffords have started a new branch of their gun-control group, Americans for Responsible Solutions. This group is supposed to bring “the experience of military veterans who’ve sworn to defend the Second Amendment and have themselves been well versed in the use of firearms”, according to CNN, who continues with the following:

“I’ve been shot at” while flying, Kelly told reporters on a conference call organized to promote the initiative.
Moreover, there are guns in the Arizona home Kelly shares with Giffords he said, guns used for self-defense and target shooting.
The point Kelly was trying to prove is that neither he nor any member of his organization is looking to repeal or limit Second Amendment rights, likely because the perception of any move against gun ownership in the United States is bound to incite fierce opposition from the powerful pro-gun lobby.

Ok, let’s focus on the last paragraph, where Kelly says he and this group are not trying to repeal or limit Second Amendment rights. While I agree that he’s not trying repeal the amendment (you can’t repeal rights), I’m curious how he can claim to not want to limit the right when his group states that its policy goals are:

  • Criminal Background Checks
  • Limiting High Capacity Magazines
  • Limiting Assault Weapons
  • Stopping Gun Trafficking

The only one of the four policies that wouldn’t infringe or limit the Second Amendment is the last one, as it focuses solely on criminal traffickers of guns. The other three goals seriously infringe on people’s rights: mandatory background checks on all sales would be ineffectively without a registry (else how would you know if a check had been performed?), limiting magazines with a capacity greater than some arbitrary limit (7 in NY, 10 in CA, 15 in CO) puts artificial limits on what people can use for sport or self-defense, and banning the most popular types of guns in the country (which are almost never used in crime) serves no purpose at all except to restrict people’s rights.
In short: essentially everything this group wants to do ends up restricting and limiting the rights of ordinary, law-abiding people while doing essentially nothing that would be effective against crime.
Also, CNN talks about “the powerful pro-gun lobby” as if it were some nebulous, diabolical group instead of tens of millions of law-abiding, gun-owning (and/or gun-rights-supporting) fellow Americans.

Vance Coleman, a retired Army major general, said on the call that he also owns guns. But not everyone should, Coleman continued, namely criminals and the mentally ill.
“They should not own guns and the Congress needs to do something about that,” Coleman said.

Incredibly enough, it’s already illegal for criminals and the mentally ill to own firearms. Their rights can be restricted after due process (e.g. being convicted of a disqualifying crime or being adjudicated mentally defective, involuntarily committed to a mental institution, etc.).

The exact functions of the veterans initiative remains fluid.

In short, it’s an astroturf group that intends to use appeal to authority (that of military vets) to push it’s unconstitutional agenda, but they haven’t quite worked out the details.

Politically, gun control has proven largely unpalatable, particularly with the successful recall elections in September of a pair of Democratic legislators in Colorado who helped push gun control measures.

Indeed. It’s probably wise for politicians to remember this point.
Hat tip to Sebastian. How he keeps up with all the news to find these stories, I have no idea.

Popularity of pro-gun and anti-gun groups on social media

Gun control groups routinely tout that they’re representing some large fraction of Americans in order to boost their claims to legitimacy. I’ve always been a bit skeptical about this, since various public records seem to show extremely low numbers of paid members among gun control groups, and high numbers of paid members of gun-rights groups.
I generally consider paid membership numbers to be more reflective of actual interest, as paid members are putting their money where their mouth is. Still, knowing how popular various groups are on the two major social media services — Facebook and Twitter — can yield some insight, particularly into how interested slightly-to-moderately motivated subset of the population is in what they say. Clicking a button to “Like” something on Facebook or “follow” them on Twitter requires basically no effort and allows one to get updates from those that they “Like” or “follow”. Since there’s essentially no barrier to entry, I’d expect that social media numbers would be a good way to measure the relative interest in what the different groups have to say.
I reviewed the numbers of Facebook “Likes” and Twitter “followers” (hereafter referred to as “subscribers”) for gun rights groups, gun companies and industry trade groups, and anti-gun groups on November 8th, 2013 at about 9:00pm UTC. Here’s what I found:

Gun Rights Groups:

  • National Rifle Association (Facebook): 2,748,839
  • National Rifle Association (Twitter): 191,692
  • Gun Owners of America (Facebook): 276,867
  • Gun Owners of America (Twitter): 22,786
  • Second Amendment Foundation (Facebook): 119,810
  • Second Amendment Foundation (Twitter): 4,962

Gun Industry:

  • National Shooting Sports Foundation (Facebook): 157,718
  • National Shooting Sports Foundation (Twitter): 21,104
  • SHOT Show – run by NNSF (Facebook): 44,573
  • SHOT Show – run by NSSF (Twitter): 23,649
  • Glock, Inc. (Facebook): 614,185
  • Glock, Inc. (Twitter): 63,336
  • Smith & Wesson (Facebook): 680,937
  • Smitth & Wesson: (Twitter): 54,447
  • Sturm, Ruger & Company?(Facebook) 345,734
  • Sturm, Ruger & Company?(Twitter): 18,310

Gun Control Groups:

  • Americans for Responsible Solutions (Facebook): 89,414
  • Americans for Responsible Solutions (Twitter): 210,708 ((There is no official ARS Twitter account, so this is the sum of followers for Rep. Giffords and her husband, Mark Kelly, as their individual accounts are mentioned specifically on the ARS website and who have 139,800 and 70,908 followers, respectively.))
  • Mayors Against Illegal Guns (Facebook): 19,271
  • Demand Action – MAIG on Twitter (Twitter): 26,860
  • Moms Demand Action For Gun Sense In America (Facebook): 122,938
  • Moms Demand Action For Gun Sense In America (Twitter): 12,254
  • Brady Campaign (Facebook): 58,650
  • Brady Campaign (Twitter): 17,170
  • Violence Policy Center (Facebook): 20,571
  • Violence Policy Center (Twitter): 1,934
  • CSGV (Facebook): 46,314
  • CSGV (Twitter): 9,575

What does this tell us? First off, it’s noteworthy to point out that all groups except Americans for Responsible Solutions had far more subscribers on Facebook than on Twitter. Perhaps the ability to post arbitrary-length messages on Facebook is preferable to the 140-character limit imposed by Twitter?
The fact that the NRA has the largest number of subscribers is unsurprising: they are a huge organization and have ~5 million dues-paying members and a very active public outreach group. They also have a substantial number of subscribers on Twitter.
I was surprised by the number of subscribers to the Gun Owners of America Facebook account: the GOA is a no-compromise group that, while having about 300,000 dues-paying members, also has nearly that many Facebook subscribers, about 77% the number of Facebook subscribers to all the gun control groups combined.
I was also surprised at the number of subscribers to the National Shooting Sports Foundation. The NSSF is the firearms industry trade group and I don’t normally think of it catering to the general public. Still, it has more Facebook subscribers than all but one of the gun control groups. The SHOT Show, an annual trade show for the shooting sports industry, is not open to the public yet still has more Facebook subscribers than the CSGV, VPC, and Mayors Against Illegal Guns and more Twitter subscribers than all but two of the gun control groups.
Glock and Smith & Wesson, both gun companies, each have roughly 2x the number of Facebook subscribers of all of the gun control groups combined. Each has more Twitter followers than all but one of the gun control groups. Ruger has roughly as many Facebook followers as all the gun control groups combined, and more Twitter subscribers than half of the gun control groups.
Even though there’s essentially no effort involved in subscribing to a group’s Facebook or Twitter feed and people can subscribe with a single click, the gun control groups have a rather poor showing: the only group to exceed 100,000 subscribers on Facebook (something achieved by every pro-gun or industry group, with the exception of the SHOT Show) was Moms Demand Gun Sense in America. They are roughly tied for subscribers as the Second Amendment Foundation, a group more normally found successfully fighting legal battles in courtrooms rather than reaching out to the public on social media. MDA has fewer Twitter followers than any individual pro-gun or industry group with the exception, again, of the SAF.
The NRA alone has more Facebook subscribers than all of the Facebook and Twitter subscribers of all of the anti-gun groups combined. Talk about the 800lb gorilla in the room.
It’s pretty clear that the pro-gun-rights side has far more popular support, not only among dues-paying members, but also among people who need only click a mouse button to register their support.
As to whether or not these levels of support hold when extended to include the general public, I leave as an exercise to the reader and the professionals.
If anyone has details on other groups, either pro- or anti-gun that you’d like me to add to the list, please let me know and I’d be happy to add them. I just picked the groups that I happened to be aware of and that had at least a moderate presence on these two social media platforms.