Is the World Moving toward a New Kind of Cold War?

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The Beijing Olympics and Russia's actions in Georgia pose new challenges to the US and the western alliance.  Is it time for aggressiveness or accommodation? Is there a risk of confrontations that can't be won?  Also, NATO troops come under fire from the Taliban, and with less than a week before the presidential nominating conventions begin, what's latest on public opinion.

Banner image: China's Zou Kai, winner of the Horizontal gold medal at the Beijing Olympic Games. Photo: Xinhua