The San Diego fence actually works. Did you note the BP vehicle in the patrolled middle road?
Question, do you just leave your car and house doors open and unlocked when you are gone, because some slick high-end thieves might tunnel in or hack your alarm systems anyway?
Or do you lock your doors and windows?
Abolish Welfare to Illegal Alien Invaders ASAP, or Lock and Load - - - your choice.