There is evidence that they certainly have the capability of analyzing much (if not all) communications in the world: https://www.infoworld.com/article/2608141/

There is evidence that they certainly have the capability of analyzing much (if not all) communications in the world: https://www.infoworld.com/article/2608141/internet-privacy/snowden--the-nsa-planted-backdoors-in-cisco-products.html https://www.infoworld.com/article/2608141/internet-privacy/s...