MACAU, China -- Macau is definitely a hot spot these days, not just as a tourist destination but also as a focal point for international diplomacy and security.

Entrance hall of a luxurious hotel-casino complex in Macau, China Guests stroll through the entrance hall of a luxurious hotel-casino complex in Macau, China, recently. REIJI YOSHIDA PHOTO

The Macau government announced late last month that total revenue from casinos surged 22 percent to hit $6.95 billion last year, making the city the world's largest casino town by surpassing the estimated $6.5 billion in revenue for Las Vegas.