Mexico prisoners & drone crash

StratFor today says 191 Mexican prisoners escaped from prison in Nuevo Laredo, just on the other side of the Rio Grande from Laredo, Texas.  And Mexico is flying -- and crashing -- drone aircraft along the Texas-Mexico border.  Was the drone part of the search for the prisoners? This is the first I've heard of Mexico flying drones on the border or anywhere else.  The US government and the border states have been flying our own drones down there for a while now.

Mexico naturally demanded their airplane back, and got it.  Left behind: those 191 prisoners, plus millions of Mexican citizens living in the US illegally.