I would imagine that, at best, a "report" (originated from abroad, mind) would still get you at best something similar to parallel construction: Nothing really

I would imagine that, at best, a "report" (originated from abroad, mind) would still get you at best something similar to parallel construction: Nothing really useful other than a specific tip to start a real investigation on a specific person, which would require a warrant you can't yet get from FISC due to lack of admissible evidence of probable cause. Either way it's a very dangerous legal ground to walk on. Whatever else we can say for NSA, they've been listening to their lawyers this time.