Listen, can you help me out here?
In that constitution of ours, you know, the one that names the president commander in chief of the armed forces, where does it grant Congress the right to demand information about military intelligence operations?
Congress controls the purse strings. That's really the bottom line. They (presumedly representing we the people) have a right to know where the money is going before just handing it over willy-nilly. And they (again, we the people) have the right to know what was done with previous appropriations before continuing to hand out more.