Fort Huachuca is home of the U.S. Army Intelligence Center and the U.S. Army Network Enterprise Technology Command. It's also the site of hundreds of apprehensions of illegal immigrants each year.
Sorry for ragging on you guys a bit here - but seriously - no perimeter sensors? You guys have sensors that can hear a gnat fart five miles away! Yet anyone can just stroll onto the base like it's no big thing. Try that here - if you are lucky, it's 5 years. Unlucky or get too close - backhoe time.
Guess it goes to prove the old maxim. Army Intelligence. Pick one.