Most of the border cities are shitty at this time, for obvious reasons: they are centers of international drug and human trafficking. Those in the government who are not in league with the thugs are powerless against them, so it's not like there is anyone there who will take care of you if something goes wrong. There are going to be a lot of people there who don't want some guy from San Diego walking around with a camera. Go farther south IMO. I am not one to spread fear, but I feel a good warning is really warranted in this case. Whatever photos you can get there are really not worth it IMO. It is a shithole. It always has been, but now it is a shithole that has been completely infiltrated by murderous thugs and governmental corruption. It's really tragic. Mexico is such a beautiful place and has such lovely people for the most part.