http://www.foxnews.com/politics/2013...-web-searches/ This is part of a longer article: The agency acknowledged the existence of the program -- called XKeyscore -- but said access is limited and suggested it was mainly aimed at foreign intelligence targets. The Guardian article described it differently. According to the piece, the XKeyscore program is the "widest-reaching" system the agency has and allows analysts without prior authorization to dig around the database by filling out an on-screen form giving a basic justification. According to the report, the program covers "nearly everything a typical user does on the internet" including emails and websites visited. It also reportedly allows analysts to intercept Internet activity in "real time." The Guardian report seems to make a distinction between what is technically possible under this program and what is legally allowed. It notes that U.S. law requires the NSA to get a warrant if the target is a U.S. individual -- but says the XKeyscore program provides "the technological capability, if not the legal authority" to go after Americans without a warrant as long as an analyst knows information like an email or IP address. The NSA, in its statement, pushed back on these assertions.