Criminals increasingly are choosing high-powered firearms such as assault weapons, a new survey of 166 U.S. police agencies shows. Nearly 40% of the departments reported an uptick in the use of assault weapons, according to the Police Executive Research Forum, a law enforcement think tank. In addition, half reported increases in the use of 9mm, .40-caliber and 10mm handguns in crimes — among the same types of weapons that police use. The survey offers one of the... (GunPolicy.org)