For the record, NSA at Menwith Hill in the UK has been monitoring email using AI for almost 10 years. I'd say it is extremely likely that the ability to trace bittorrent is a reality. If the US Military satellites can make photographs with high enough resolution to read a license plate on an automobile from near space I'd think there is a lot we don't know in the public domain.
Governments rarely advertise ALL their capabilities do they.