Beijing's Secrecy Fuels Fears About China's Overheating Economy

The global economy may be showing some signs of finally starting to normalize, but investors remain on edge, on the lookout for the slightest hint of trouble. A plunge in U.S. consumer confidence data -- which is often of questionable quality due to the polls' small sample sizes -- was the latest spark for a sell off. Unusually high unemployment claims later this week may also rattle markets if investors forget to take the recent bout of horrible weather into account. And Greece, which accounts for a mere 2% of the eurozone's GDP, seems to be having every detail of its debt load scrutinized in microscopic detail.