Bin Laden anniversary delicate moment for Obama, Romney

WASHINGTON (Reuters) - It was a triumphant moment a year ago for the United States and President Barack Obama, but now the anniversary of Osama bin Laden's killing presents an election-year challenge for him and his Republican opponents. Obama is expected to acknowledge the May 1 anniversary of the daring Navy SEAL raid on bin Laden's Pakistan compound. But he will not overdo it, a senior White ...