The US Supreme Court has previously ordered the government to obtain search warrants before seeking information that may “chronicle a person’s past movements through the record of his cell phone signals.” In the landmark Carpenter v. United States decision, the ...

The United States government has been secretly amassing a “large amount” of “sensitive and intimate information” on its own citizens, a group of senior advisers informed Avril Haines, the director of national intelligence, more than a year ago.  The size ...