[helloworld11]

The Mexican cartels are notably wary of messing with U.S police agents and police/military/border security agencies. There are isolated cases of very foolish sicarios or smaller, more irresponsible organized crime cells playing at threats against U.S border agents or at U.S agents inside Mexico but it's rare and often discouraged brutally by the larger cartels. The simple reason why is they know that with the U.S government, the subversion they regularly practice with pathetically corrupt Mexican authorities works much, much less and goes completely out the window if a U.S police agent dies by their hands. The U.S government strongly underscored this with the cartels by spending decades and God knows how much money diligently pursuing every last person they could find who had any connection to the Kike Camarena murder. The lesson hasn't been forgotten by the bigger cartel bosses, even today.