After fierce resistance from the gun lobby and its allies in Congress, Attorney General Eric Holder has dialed back talk about reimposing a federal assault weapons ban to help curb the spiraling violence in Mexico. As much as 90 percent of the assault weapons and other guns used by Mexican drug cartels are coming from the United States, fueling drug-related violence that is believed to have killed more than 7,000 people since January 2008, according to estimates by... (GunPolicy.org)