The dollar sank the most in seven years against major currencies, while U.S. stocks retreated as services data raised concern about the strength of the American economy and the bear market in financial shares deepened. Crude rallied past $31 a barrel in New York. The Bloomberg Dollar Spot Index tumbled 1.9 percent after data showed services industries expanded at the slowest pace in nearly two years. The Standard & Poor’s 500 Index headed for its first three-day slide in four weeks as bank shares plunged 2 percent. Crude rallied more than 6 percent after its biggest two-day plunge in seven years, and commodities ... (full story)