In consideration of recent article by Das Erste publication, do bridges, and Pluggable Transports bridges utilization hinder anonymity and are essentially circumvention tools?
Following, please find an excerpt from Das Erste:
This code demonstrates the ease with which an XKeyscore rule can analyze the full content of intercepted connections. The fingerprint first checks every message using the "email_address" function to see if the message is to or from "email@example.com". Next, if the address matched, it uses the "email_body" function to search the full content of the email for a particular piece of text - in this case, "https://bridges.torproject.org/". If the "email_body" function finds what it is looking for, it passes the full email text to a C++ program which extracts the bridge addresses and stores them in a database. The full content of the email must already be intercepted before this code can analyze it.