If an illegal shows up at the border without any ID or proof of who they are, the US Border Patrol takes whatever they're told, have to take the illegal's word and hope it's true. this is stated at the 8:00 minute mark in this vid. The first 8 minutes discusses how illegals, US criminals and even foreign embassies, are getting into stealing US citizen identification, including passports, drivers licenses and social security.
just when you think the border invasion stupidity is bad enough already, it gets even worse.
Enjoy the decline.