A police officer stands at the entrance of the Marina Bay Sands casino in Singapore April 27, 2010. Las Vegas Sands, the world's most valuable gaming company, opened the doors to its multi-billion-dollar Singapore casino today, the latest entrant in the fight for Asia's gambling dollar. Singaporeans have to pay an admission fee equivalent to about $70 as part of a government campaign to warn of the dangers of gambling addiction. REUTERS/Pablo Sanchez (SINGAPORE - Tags: BUSINESS SOCIETY TRAVEL)