‘On the Wednesday of the shooting in San Bernadino, only a few hours before the event took place, doctors went to Capitol Hill asking Congress to end the ban on gun violence research. They presented a petition signed by over 2,000 doctors nationwide, protesting a 1996 ban that prevents the Center For Disease Control from studying gun violence.
The ban was made after a CDC-funded study revealed that having a gun in the home increases the likelihood of homicide and suicide. The NRA convinced Congress that the CDC was using its power to advocate gun control, and Congress quickly cut funding for gun-related research. It wasn’t exactly a ban on all research, per se, but the amendment was worded in such a confusing and vague way that no one knew for certain what was permitted. This created a climate of fear and intimidation with CDC researchers, with “no federal employee was willing to risk his or her career or the agency’s funding to find out” if they could study gun violence…’
Source: Big Think