That FBI hacking initiative that caught 1,500 pedophiles on the Dark Web? It was just the tip of the iceberg. Motherboard has discovered that the operation was just one part of Operation Pacifier, a global campaign to fight child porn hidden through anonymity networks like Tor. The effort had the FBI hacking systems as far afield as Chile, Denmark and Greece -- there are also hints of possible operations in Colombia and Turkey. The US agency wasn't working alone, either, as it teamed up with Europol to collect information and pass it along to local law enforcement.