America’s richest people are getting poorer, according to this year’s Forbes 400 list.The annual ranking of the 400 wealthiest US citizens shows their net worth has dropped by $300bn, from $1.57 trillion to a paltry $1.27 trillion. That includes a loss of nearly $40bn for the top ten alone. The decline can be attributed to the global economic crisis, which has affected the capital and housing markets, as well as fraud and divorce, causing 314 returning members to record a loss. Warren Buff