Operation Checkmate in Arizona led to the arrest of 52 truck drivers, including 36 semi-truck drivers. Three of the semi-truck drivers reportedly had no driver’s license at all, and many had expired Employment Authorization Documents. The arrested drivers are For the week of May 11, the road into Arizona became a checkpoint of its own. In a crackdown that U.S. officials call Operation Checkmate, U.S. Border Patrol Agents arrested 52 people they said were in the U.S. illegally.