Who knew selling home security systems was just like spreading the word of God? Some former Mormon missionaries have become door-to-door salesmen for Pinnacle Security of Orem, Utah, a company that's profiting off their experience spreading religion. The religious-minded Pinnacle employees are used to cold-calling strangers from their years on missions abroad, which also have helped some learn handy new languages. Faith follows these missionary-salesmen, of course, wherever they go: one salesman now carries "pass-along cards" with information about the Mormon Church under his Pinnacle brochures. Said one converted salesman: "It's missionary work turned into a business."