Biloxi --It's been years since a camera was allowed into a surveillance room at a Mississippi casino. But last week the Mississippi Gaming Commission and Beau Rivage Casino showed the Sun Herald what it takes to crack an international cheating ring and why the government is partnering with casinos for homeland security. The Sun Herald also interviewed "John Doe," an undercover special agent for the MGC, who identified how the Tran Organization cheated at least 16 casinos in the United States and Canada...