.Japan's Nikkei 225 index plunges 12.4% as world markets tremble over risks to the US economic situation The Associated PressGlobal supply thrashing magnifies with Asia's Nikkei enduring worst one day loss and other Asian markets plunging CNNStocks transmitted in Asia, topple in Europe as markets stress over united state economy after weak than assumed jobs mention CBS NewsStocks Specify for Reductions as Economic Situation Anxieties Deepen: Markets Cover Yahoo FinanceMarkets All Over The World Are Actually Rattled by Worries of Slowing USA Development The Nyc Moments.