Mexico invades USA?

Past #100 and the last thread looks stale... off-topically... via Drudge big headline right now (Pelosi was better):

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TUCSON, Ariz. (CBS Las Vegas) - Border Patrol agents in Arizona were reportedly fired upon by a Mexican military helicopter that traveled across the border. ...

[This is it! Mexico decares war on USA!]

... KVOA-TV reports that Mexican authorities were conducting a drug interdiction operation when the incident happened early Thursday morning on the Tohono O'odham Indian Nation. The Mexican chopper fired at the agents and then flew back into Mexico. ...

[Oh, well, that's still pretty bad. And, Mexico does drug interdiction?]

...Art del Cueto, Border Patrol Tucson Sector union president, tells KVOA that they called and apologized for the incident. ...

[Oh, well, everything's swell, then. Couldn't we have a little more cross-border coordination on such operations, there? Oh, right, the border patrol is repurposed as a daycare service now. Like NASA outreach to Jihadis.]

... "Two shots were fired from the helicopter but no injuries or damage to U.S. property were reported...."

[Cancel flaming skull.]