What problem is Moscow faced with in bidding for the 2012 Olympic Games?

Moscow is  widely regarded  as  having  only  an  outside chance of staging the Games. Although the city is thriving, it suffers from a lack of hotel accommodation, transport problems, including an aging airport and questions of security. But the city and the Russian government are prepared to make major investments to secure the 2012 Olympics. Ten billion dollars would be available to transform the city’s infrastructure, including a new metro system.