Man, I wonder how much we the taxpayers paid for this. Did you check out the conclusions? They really went out on a limb this one, really stuck their necks out and put their reputations on the line with their bold, sweeping pronouncements. Pay particular attention to column 2.
"Insufficient evidence to determine effectiveness"
That won't even get a search warrant unless you bribe the judge.
Which, of course, is what gun control is really about, money.