A joint project by The Washington Post and 60 Minutes explores the world of online gambling. The industry clears $18 billion annually, but exists in murky legal territory. One group of online poker players had to take it upon themselves to unearth a $20 million cheating scam. But they could not turn to U.S. officials for help because online gambling is illegal in the United States and the two sites involved, Absolute Poker and UltimateBet, had their servers offshore. The Post and 60 Minutes raise questions about the "integrity and security" of this billion-dollar industry.