NOGALES — We just followed the trail of the migrant vans right to the source, visiting the Arizona border town of Nogales, where we encountered some rude and suspicious "Alita's Angels" NGO (@alitasangels) workers who once again called the police on us.

A volunteer with the American Red Cross, who wouldn't give us his name, tried to prevent us from filming outside a migrant facility and kept sticking his hand over our cameras. Then, when we questioned a volunteer with the NGO, she said "I am your father" and stormed off. 

Nogales Police officers showed up and questioned us after Alitas and Red Cross workers falsely accused us of using racial slurs and inhibiting their movement. We tried to get the officer's first name but he refused to give it. When we FOIAed the bodycam footage, we were told Nogales police don't use them. 

A group called "Alita's Angels" runs the facility, but they're a brand-new nonprofit with no tax records on file. (We requested the documents, with no luck.)

A WORKER with Casa Alitas CONFIRMED TO OUR UNDERCOVER journalist that Casa Alitas was getting federal money.

Once the migrants were boarded on the bus, we got a head start to meet them at a processing facility an hour away in Tucson, but once again, we couldn't get anywhere near the building. The staff of the facility, run by Casa Alitas, threatened to call the cops again, but we managed to interview a local driver who does business at the facility and he gave us even more information.