.Japan's Nikkei 225 index drops 12.4% as planet markets shiver over risks to the US economic situation The Associated PressGlobal sell thrashing escalates with Japan's Nikkei experiencing worst 1 day loss as well as other Asian markets plunging CNNStocks directed in Asia, roll in Europe as markets fret over U.S. economic situation after weaker than expected work mention CBS NewsStocks Set for Losses as Economy Fears Grow: Markets Cover Yahoo FinanceMarkets Around the World Are Abashed through Concerns of Slowing USA Growth The New York Times.