How many people were killed in the USA by people on the Terrorists watch list? How many on the no fly list? How many people were killed last year by gang bangers who have been convicted of at least one felony? How many legally bought the firearm they used? How many people committed suicide by a method other then the use of a firearm? OK I looked this one up its almost exactly 1/2 of all suicides do not involve a firearm. I don't see how using the terrorist watch list or even the no fly list will make a measurable difference in the crime rate.