This is unconfirmed:
I recently was given a report that Mexican Narco Terrorists, ahead of a promised fall incursion, have been actively burying weapons caches north of the border in Arizona. The report comes from boots on the ground in the affected area.
One such incident includes Border patrol "Busting" several illegals after catching them burying automatic weapons and grenades.
Again this is unconfirmed and I believe there is a media blackout after the bogus incidents at the texas ranches.