[rtpg]

and do you think the DGSE is some sort of transparent body?

They're obviously both groups you don't want to have as buddies, but the NSA has lost court battles before, and ends up complying with the rulings most of the time.

The French surveillance services openly gloat about working in a "judicial vacuum": basically all the rules of its operations are decided by the Prime Minister and their pals, and basically have no legislative boundaries.