Jenna McLaughlin May 2 2016, 8:14 a.m.
The Federal Bureau of Investigation’s refusal to discuss even the broad strokes of some of its secret investigative methods, such as implanting malware and tracking cellphones with Stingrays, is backfiring — if the goal is to actually enforce the law. In the most recent example, the FBI may be forced to drop its case against a Washington State school administrator charged with possessing child porn because it doesn’t want to tell the court or the defense how it got its evidence—even in the judge’s chambers. The FBI reportedly used a bug in an older version of the free anonymity software Tor to insert malware on the computers of people who accessed a child-porn website it had seized. The malware gave agents the ability to see visitors’ real Internet addresses and track them down.