.Asia's Nikkei 225 index drops 12.4% as world markets tremor over threats to the United States economy The Associated PressGlobal inventory rout intensifies with Japan's Nikkei enduring worst someday reduction and also other Oriental markets diving CNNStocks directed in Asia, topple in Europe as markets fuss over united state economic condition after weak than anticipated work state CBS NewsStocks Set for Reductions as Economy Anxieties Grow: Markets Cover Yahoo FinanceMarkets Around the World Are Discomposed through Anxieties of Slowing United State Development The Nyc Times.