CUSTOMS AND BORDER PROTECTION MAKES LARGEST FENTANYL BUST IN THE AGENCY’S HISTORY; AT THE NOGALES BORDER CHECKPOINT; GUESS WHERE? PORT OF ENTRY, NOT DESERT. GUESS HOW? IN A TRACTOR TRAILER, NOT A BACKPACK; GUESS WHO? MEXICAN, NOT CENTRAL AMERICAN ASYLUM SEEKER. GUESS WHAT DID NOT STOP THEM? A WALL, AGENTS USING TECHNOLOGY AND A DOG DID.