NEW YORK - A truck carrying a billboard with a running tally of the number of Americans killed by gun violence since the January 8 massacre in Tucson departed New York City on Wednesday for a two month tour of 25 U.S. states. The Arizona shootings left Rep. Gabrielle Giffords and 12 others wounded, and six dead. As the billboard left Times Square the tally of those killed in gun violence since the Tucson incident was given as 1,300, with another 24 added by... (GunPolicy.org)