The killing of Osama bin Laden has become a campaign weapon for President Barack Obama.
Obama's re-election campaign is portraying his risky decision to go after America's top enemy as a defining difference between him and his Republican presidential opponent. His team is suggesting Mitt Romney may not have had the guts to order a mission that put lives and perhaps a presidency at stake.
Obama himself is opening up anew-- and opening the secretive Situation Room as an interview stage -- to hail the one-year anniversary of the raid.
Romney's campaign says it is "sad" for Obama to use a unifying event to divide the nation.