Back in 2008, from when journalists weren't afraid of being targeted by this technology and were confident the Obama administration would stop it:
Barack Obama will be in charge of the biggest domestic and international spying operation in history. Its prime engine is the National Security Agency (NSA)... A brief glimpse of its ever-expanding capacity was provided on October 26 by The Baltimore Sun's national security correspondent, David Wood:
"The NSA's colossal Cray supercomputer, code-named the 'Black Widow,'
scans millions of domestic and international phone calls and e-mails
every hour. . . . The Black Widow, performing hundreds of trillions of
calculations per second, searches through and reassembles key words and
patterns, across many languages."