A U.S. Customs and Border Protection officer patrols outside of the departures area at Miami International Airport, Friday, July 1, 2016. // Lynne Sladky/AP Everything started to go wrong just after 5 a.m., when Sidd Bikkannavar scanned his passport, placed his hand on a fingerprint reader, and watched as the automated customs kiosk spat out a receipt with a black X drawn across it.