I don't know if there any closures due to smugglers, but Pipe Organ National Monument has signs warning visitors that they are entering very dangerous areas. Mexican drug gang gun battle recently left 21 dead just 12 miles south of the border.I hace a concealed weapon permit and I never go anywhere unarmed. I have at least 3 guns on board my boat when I go fishing. A .22 revolver loaded with snakeshot that I keep in my tacklebox, a M1911 .45 that is my designated boat gun that is kept in my boat bag, and whatever carry weapon I happen to be carrying that day, usually either a S&W model 59 9mm, or a S&W model 629 .44magnum with 4" barrel.
It becomes more dangerous every year here, those who criticize our soon to be enacted law should live here for a few months and then see how they feel about it.