This is John Lott's presentation to C-Span. John Lott is not a gun guy, he's a statistician and an acadamician. In fact until 1993 he was a registered demoncrat. Then he began work on a paper published in 1996 (with David Mustard) titled Crime, Deterrence, and Right-to-Carry Concealed Handguns, unbiased research showing that, in a nutshell, more guns equals less crime. That experience was the cause of his "Road to Damascus" conversion.
I believe he made the speech on July 20 and it was posted to the Internet on the 28th. In the video he summarily goes throught the most common anti-gun myths and disassembles them, not only showing that they are wrong but also showing how THE LEFT is deliberately misrepresenting and distorting the data to make a political point. Hence the title of his latest book, War On Guns.
It's 49 minutes long, and worth every minute it you're a gun guy.