Video of two uniformed U.S. Border Patrol agents boarding a Greyhound bus in Fort Lauderdale, Florida, and instructing passengers to show proof of citizenship has spread concern across the country. A few minutes after entering the bus, the officers emerged escorting a woman off the bus. Border Patrol confirmed that a woman on the bus had an expired tourist visa and had been arrested. Activists in the immigrant community are pushing for restrictions that do not allow Border Patrol agents to board private Greyhound buses to question travelers without a judicial warrant.