Why go through all that effort? The NSA / CIA will just keep doing what they currently do...continue to violate the Constitution and when caught red-handed just lie about it. Most recently off the top of my head, like when they hacked Feinstein's computers while she was conducting an investigation on them. Like that skit on The Chappel Show..."I'd never do that to someone's couch! Yeah, I did that to his couch."
To me, this claim is a good thing. Oh no, they will have to go back to doing real investigations again, and won't be able to just suck up everyone's messages, emails, etc like they are now. Boo hoo, their agents will have to get out from behind their monitors and hit the streets! End of the world! They can't even justify the data warehousing by showing when it's lead to actually stopping anything.