This month’s Paris shootings demonstrated that mass surveillance doesn’t stop terrorist attacks, Edward Snowden has claimed in an interview with Dutch broadcaster NOS. “France passed one of the most intrusive, expansive surveillance laws in all of Europe last year and it didn’t stop the attack, and this is consistent with what we’ve seen in every country,” the NSA whistleblower said. French authorities knew about the Paris attackers but didn’t predict what they ultimately did. Snowden pointed out that U.S. authorities knew about the Boston bombers, but that didn’t actually stop the attack. “The problem with mass surveillance is that you’re burying people under too much data,” he said, echoing arguments that others have made about the “base rate fallacy”.