Danger looms at the 2014 Winter Olympic Games in Sochi, but is Russia's security up to snuff?

That's how much has been spent on the 2014 Winter Olympic Games in Sochi, Russia so far, with the final tab projected to be even higher. Though various elements factor into this being the costliest Olympics ever -- to put things into perspective, China spent $40 billion on the 2008 Summer Olympics -- security is a big one.