IT’S MOSTLY JUNK SCIENCE: Jacob Sullum: The Problem With the ‘Public Health Research on Gun Violence’ That Obama Wants You to Pay For. CDC research on guns and violence has been dishonest, and debunked as such in the past. Why is it likely to be better? It’s not. As Sullum says: “Why would Obama want to waste taxpayer money on this sort of tendentious, prejudice-confirming research? I bet you can figure that out—without a government grant.”