San Diego (major port - Hub) I8 E-W & I5 N
Tijuana
Nogales I19 N to Tucson I10 N-SE
Tucson I10 N to Phoenix
Nice chunk of land that Mexico has taken back
First heard about it back when they started taking over National Parks..early 2000s
https://www.mlive.com/news/grand-rapids/index.ssf/2016/08/years_after_us_park_ranger_gun.html
2010
Mexican drug gangs 'taking over' national parks
https://www.policeone.com/drug-interdiction-narcotics/articles/2012069-Mexican-drug-gangs-taking-over-national-parks/
Can mean many things