Yes, I noticed them too, and there seems to be more of them all the time. I'd say the Mexican government should deport them back to the states, or the TJ police should lock them up.
The nice looking ones could stay, except I haven't seem too many nice looking ones walking around?
I always had a fondness to American crack hoes in the states. I guess I was comfortable with them, because I knew they were not a female police decoy. If I ever saw a white girl in the streets looking like she was selling her ass, but looked like she didn't do drugs......I avoided. But in TJ I don't want to see drugged out providers.