Documents published by Wikileaks reveal a secret project to siphon out data through its technical liaison service, dating back to 2009. The Verge reports: The program, called ExpressLane, is designed to be deployed alongside a biometric collection system that the CIA provides to partner agencies. In theory, those partners are agreeing to provide the CIA with access to specific biometric data -- but on the off-chance those partners are holding out on them, ExpressLane gives the agency a way to take it without anyone knowing. ExpressLane masquerades as a software update, delivered in-person by CIA technicians -- but the documents make clear that the program itself will remain unchanged. Instead, the program siphons the system's data to a thumb drive, where agents can examine it to see if there's anything the partner system is holding back. If the partners refuse the phony update, there's a hidden kill-switch that lets agents shut down the entire system after a set period of time, requiring an in-person visit to restore the system.