Republicans need to "have a discussion on guns" in the wake of last week's grade-school massacre in Newtown, Conn., Speaker John Boehner (R-Ohio) told his conference Tuesday. Speaking to his troops at a closed-door meeting in the Capitol, Boehner was mindful of conservatives' traditional opposition to new gun restrictions, emphasizing that Republicans wouldn't do "anything knee-jerk," according to a lawmaker in the room. But the Speaker also said he wants to "de-politicize" the issue of gun violence, which has been thrust dreadfully into the national spotlight following the murder of 26 people — 20 of them young school children —...