Tony Marnell
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Las Vegas architect on the city's fortunes

The Las Vegas economy is in trouble, with unemployment rates at over 13% and up to 80% of homeowners in negative equity.

Architect Tony Marnell - who built several of the the city's big casinos - says the downturn will change the whole urban dynamic of the town.

"Previously 20% of the hotels were always going broke. The difference now is that 60% of hotels are losing money," he told the BBC World Service.

He says Las Vegas's resorts will have to adjust their entire business model - but that ultimately the city will bounce back.