GENEVA - Colombian security forces committed "a significant number" of murders over the past decade, often for personal profit, and few of the perpetrators have been punished, according to a report published Thursday by an independent U.N. human rights expert. Philip Alston, the U.N.'s investigator on extrajudicial executions, said in his 36-page report that the number of so-called "false positive" killings by military members surged in 2004. The term refers to... (GunPolicy.org)