Dianne Feinstein in CBS "Face the Nation" interviews during 2016

On Gun Control: Denying guns to no-fly list is a national security issue

FEINSTEIN: We have worked with the Justice Department in drafting this legislation. I do not believe the NRA is correct on this. This is really a national security issue. It isn't a gun control issue. And let me explain why. ISIL is actively pursuing operations to commit attacks and bring people in to western countries, whether it's through immigration, whether it's over the border, or in any other way. The fact of the matter is that it's well-known that a terrorist can come into this country, they're not on the NICS list, which is the database of where you can deny a gun. They're not there and can, therefore, buy a gun legally in this country. What this legislation does is, if there is reasonable suspicion that the person, when they do the background check, is a potential terrorist, the gun sale can be denied. It also has an appeal process.