.Japan's Nikkei 225 mark drops 12.4% as world markets tremble over threats to the United States economic situation The Associated PressGlobal stock rout escalates along with Japan's Nikkei suffering worst eventually reduction as well as various other Eastern markets dropping CNNStocks transmitted in Asia, tumble in Europe as markets fret over united state economic climate after weaker than anticipated tasks disclose CBS NewsStocks Set for Reductions as Economic Situation Anxieties Grow: Markets Cover Yahoo FinanceMarkets Worldwide Are Rattled through Anxieties of Slowing USA Growth The New York City Times.