China's devaluation raises currency war fear as Greece strikes deal

China's shock 2 percent devaluation of the yuan on Tuesday pushed the dollar higher and raised the prospect of a new round of currency wars, just as Greece reached a new deal to contain its debt crisis. Stocks fell in Asia and Europe as investors worried about the implications of a move designed to support China's slowing economy and exports. China's move, which the central bank described as a "one-off depreciation" based on a new way of managing the exchange rate that b