The massacre of more than 130 Pakistani school children by Taliban gunmen was a chilling reminder of Hillary Clinton's warning to Islamabad in 2011 that "you can't keep snakes in your backyard and expect them only to bite your neighbors".
Reuters: After Pakistan school massacre, watch for the gloves to come off
Pakistani mourners gather around a coffin during the funeral ceremony for victims of an attack by Taliban militants at an army-run school, in Peshawar on Dec. 17, 2014.
