The cool thing about science is that regardless of your beliefs, you have to show your work, and it must stand up to scrutiny. The process filters advocacy. When there's ample data that suggests causal relationships (which there is in this case), you go out and try to prove a cause and reject the null hypothesis.
Certainly the scientific community is prone to coming to broader conclusions than the findings suggest, but every scientific paper's discussion section can be prone to this. And, that isn't where the conversation ends, as follow-on research will often pick apart those conclusions.
Meanwhile, the NRA has effectively bullied the CDC into not doing any research at all related to guns, as you can tell from how they respond to the NRA:
> Following the January 2011 shootings in Tucson, Ariz., (in which Rep. Gabrielle Giffords was injured), the New York Times published an article reporting that the CDC went so far as to “ask researchers it finances to give it a heads-up anytime they are publishing studies that have anything to do with firearms. The agency, in turn, relays this information to the NRA as a courtesy.” In response to this report, the Brady Center to Prevent Gun Violence sent a letter (PDF, 647) in March 2011 to Secretary of Health and Human Services Kathleen Sebelius expressing concern that the agency was giving the NRA a “preferred position,” and urging that the NRA not be given the opportunity to exercise special influence over CDC’s firearms-related research.
> In December 2011, Congress added language equivalent to the Dickey amendment to fiscal year 2012 appropriations legislation that funded the National Institutes of Health (NIH), the Consolidated Appropriations Act of 2012 (PDF, 1.3MB), stating that “none of the funds made available in this title may be used, in whole or in part, to advocate or promote gun control.” The NRA’s advocacy efforts that lead to this amendment are thought to be a response to a 2009 American Journal of Public Health article by Branas et al., titled “Investigating the link between gun possession and gun assault,” presenting the results of research that was funded by the NIH’s National Institute on Alcohol Abuse and Alcoholism. [1]
In what other domain do we tip toe around research like this?
I think its pretty clear the NRA is simply afraid of the implications of such research - the hard question that comes up when liberties and their societal costs intersect. Maybe we choose liberties, but we have to go into that conversation with our eyes open.
[1] http://www.apa.org/science/about/psa/2013/02/gun-violence.as...