.Japan's Nikkei 225 index drops 12.4% as world markets shiver over threats to the US economic condition The Associated PressGlobal stock thrashing boosts with Japan's Nikkei suffering worst eventually loss as well as other Asian markets diving CNNStocks transmitted in Asia, roll in Europe as markets worry over united state economy after weaker than anticipated tasks report CBS NewsStocks Set for Reductions as Economy Worries Grow: Markets Cover Yahoo FinanceMarkets Around the World Are Actually Disturbed through Concerns of Slowing U.S. Growth The Nyc Moments.