that link shows the wrong blocked airspace in my case

(it shows that some areas above the border in the desert are blocked off, which makes sense to fight drug smuggling by drones without risking mistaking drones with aircrafts)

but he article is about the new circular zone directly placed over El Paso with El Paso International Airport directly in it's center. (Interestingly because they used a circle it technically covers the Mexican side of the boarder including a part of the airport on their side, but practically FAA can't shut down Mexican airspace so it's misleading).

Also worth noting there is:

- Holloman Air Force Base

- White Sands Missile Range

- Fort Bliss

- Fort Bliss McGregor Range

direct besides the city

so a Military exercise, or deployment of Military (Trump has said he will bomb cartel hideouts in Mexico) can be added to the list of possibilities