Here's the write-up from the Washington Post:
President Obama faced sharply divided counsel and, in his mind, barely better-than-even odds of success when he ordered the daring May 1 commando raid that killed al-Qaeda leader Osama bin Laden, the president said in an interview broadcast Sunday.
"At the end of the day, this was still a 55/45 situation," Obama told CBS's "60 Minutes" in his first broadcast interview since bin Laden’s death. "I mean we could not say definitively that bin Laden was there. Had he not been there, then there would have been some significant consequences."
Had bin Laden not been there, the Pakistanis (if possible) would have covered this up, and in exchange they would be secretly making all kinds of demands that would weaken our interests in the region. You can't argue with success, but Obama seems to be saying that he took a much bigger risk with this raid than has been described up to now.