Anything that quotes the Brady Center as a reliable source has just got to be true.
http://www.cnn.com/2007/US/11/05/cops.guns/index.html
I love how they imply that fully automatic "600-rounds-per-minute" AK-47s are on the street now because Congress allowed the so-called Assault Weapons ban to expire. The AWB only covered semi-automatic rifles. Full auto ones were still available when it was in effect ... with a hefty tax and a full body cavity search of your background and criminal history by the ATF, as they are now. If gang members in Miami have automatic weapons, it's not because the assault weapons ban expired.