(NEWSER) – The editor of the Guardian suggested that lots more Edward Snowden scoops are in the works, and, sure enough, the Washington Post obliges with what may be the biggest one yet. Its report says the NSA tracks the locations of hundreds of millions of cellphones around the world each day and stores a mind-boggling 5 billion records per day on their whereabouts. The story has the by-now familiar NSA caveat: It doesn't deliberately target Americans' locations—the intent is to track terrorists overseas—but some US citizens get "incidentally" caught up in the enormous sweep. Intelligence officials refused to estimate how many that might be. And for those who think disposable phones will protect them, those kinds of tactics tend to bring on greater scrutiny.