Nick Turse: "If you're reading this on the Internet, the FBI may be spying on you at this very moment.
Under provisions of the USA Patriot Act, the Department of Justice has been collecting e-mail and IP (a computer's unique numeric identifier) addresses, without a warrant, using trap-and-trace surveillance devices ("pen-traps"). Now, the Federal Bureau of Investigation, Justice's principle investigative arm, may be monitoring the web-surfing habits of Internet users -- also without a search warrant -- that is, spying on you with no probable cause whatsoever."
For more on this, see the recent media release on EFF's FOIA request and the subsequent Slashdot discussion.