&gt; Has there been any significant effort to really comprehensively evaluate the data around gun violence and gun control?<p>The NRC did a review in 2004 that is probably the closest to what you&#x27;re seeking: <a href="http:&#x2F;&#x2F;www.nap.edu&#x2F;catalog&#x2F;10881&#x2F;firearms-and-violence-a-critical-review" rel="nofollow">http:&#x2F;&#x2F;www.nap.edu&#x2F;catalog&#x2F;10881&#x2F;firearms-and-violence-a-cri...</a><p>It&#x27;s not the comprehensive review of the literature you&#x27;re looking for, but more recently in 2011, the Justice Department put out a report that might also be of interest: <a href="http:&#x2F;&#x2F;bjs.gov&#x2F;content&#x2F;pub&#x2F;pdf&#x2F;fv9311.pdf" rel="nofollow">http:&#x2F;&#x2F;bjs.gov&#x2F;content&#x2F;pub&#x2F;pdf&#x2F;fv9311.pdf</a>