It's a sad thing.

But, stay out of the boarder cities. It's not safe. I have been in Mexico a lot. And driven through the big bad boarder towns many times. Even this past year and made it just fine. Stay on the highway if you must go through them, or just don't go at all. Going to Mexico to buy a car is strange itself.

30 miles south of the boarder all the way down is no more dangerous than living in Chicago when it comes to murder. Drugs rule the boarder, drugs cause the violence.