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What city will get the honor of hosting the 2020 Olympic Games? The three candidate cities face organizers in Switzerland.

FOX News Radio's Simon Owen reports:

Tokyo, Madrid and Istanbul setting out why they should host the 2020 Olympics.

Rogge: "Each one of the three cities could stage perfect games."

Olympics Chief Jacques Rogge saying each city's bid team will receive a detailed grilling at a summit in Lozan, Switzerland.

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Istanbul's team will have to allay concerns about recent social unrest in the city. But a Turkish games would take the Olympics to a new region.

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Madrid's bid says the city is all set, despite an ongoing financial crisis in Spain.

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While Tokyo's campaign paints the city as a safe pair of hands. And it's Tokyo which has received the warmest reviews in the committee's early reports. A final decision will be made in September.

In London, Simon Owen, FOX News Radio.