Linton Besser explores Australia's campaign to lure overseas gamblers, and the consequences of that policy. Building casinos may be a lucrative business. The industry here is estimated to be producing about five billion dollars a year. Most of that money comes from average Australians, but businesses that operate casinos are increasingly trying to raise their income by drawing high rollers, particularly from China. VIP players are prepared to gamble hundreds of thousands of dollars on just one wager.