[null and void]

Most (if not all) of the trapped miners in Utah are illegals, too.

Source please?

[Choose Ye This Day]

The families of the miners are being updated on the latest developments by mining officials and Murray himself. Some of the missing miners are believed to be Mexican nationals.
Mexican Consul Salvador Jimenez was in Huntington Canyon to lend his support wherever he could, hearing that three or four of the miners are Hispanic.

http://www.deseretnews.com/dn/view/0,1249,695198566,00.html

Involves some supposition on my part, but knowing that part of Utah, and knowing the industry, I’d bet my left foot that these guys don’t have green cards.