They've Already Got ID

Since 1871 Mexico has been issuing 'matricula consular' cards to nationals residing in the United States. About 40 banks and 250 police departments around the country accept the document as a valid form of identification.

The Mexican government works very hard to make the I.D. counterfeit-proof. It has 17 visible and invisible security features.

phony Mexican identification card

from an article by Juan Antonio Lizama appearing in the Richmond Times-Dispatch July 30, 2006