The world’s top athletes are competing for the gold at the London Olympics. But it’s not just the Olympians striving to come out on top. So is the city of London. This month, British Prime Minister David Cameron made a pledge to turn the Olympic games “into gold.” Every four years, host cities hope the international platform will serve as a catalyst for economic growth. Officials see it as an opportunity to modernize transportation systems, jumpstart urban renewal, attract tourism, and gain international prestige. But some doubt London, or the host cities before it, will ever come out ahead. Diane and guests discuss the costs and benefits of hosting the Olympics.