A wiki is a summary, of the available evidence, but from what I've seen, I'm not 100% confident the systems were active and deployed to the claimed maturity level.
I highly recommend the documentary "The United States of Secrets" by PBS Frontline, it digs into this time period and government motivations after 9/11. Usually free on Kanopy.
It's just as likely that XKeyscore was a strategic public relations effort to intimidate the enemy .
Believe here that all the tech was available by y2k and security was even worse than now. Just needed the funding and a willingness to break the law, which the govt had in abundance after 2001.