PRESIDENT Barack Obama was so keen to ensure the mission to nab Osama bin Laden was successful he even kept it secret from his wife. The al-Qaeda chief was shot dead in his bedroom at a compound in Abbottabad, Pakistan, last week. Obama, 49, said: "I didn't tell most people here in the White House. I didn't tell my own family. "It was that important for us to maintain operational security." The president kept the plan secret from wife Michelle, 47, and spent the weekend before the raid visiting tornado victims, speaking at a space shuttle launch and attending the...