.Japan's Nikkei 225 mark drops 12.4% as planet markets tremble over risks to the US economic situation The Associated PressGlobal stock thrashing intensifies along with Japan's Nikkei enduring worst one day loss and other Asian markets diving CNNStocks transmitted in Asia, topple in Europe as markets worry over USA economy after weak than anticipated work mention CBS NewsStocks Specify for Reductions as Economic Condition Fears Grow: Markets Wrap Yahoo FinanceMarkets All Over The World Are Discomposed by Worries of Slowing U.S. Development The New York City Moments.