Obama had no clue as to what the NSA was doing.  Other than 'The Buck Stops Here", most Presidents probably don't.

Obama didn't know that the ATF was letting hundreds of guns go into Mexico until one of them was used to kill a Border Agent. (Fast and Furious)

He didn't know that they were also selling illegal cigarettes to fund other investigations.

He didn't know that the VA was lying to get bonuses while veteran's died waiting for treatment.  And he campaigned twice to 'fix' the VA.  

Obama never knew anything bad until it appeared on TV or in the New York Times or in the Washington Post.