By STAN CHOE and DAMIAN J. TROISE NEW YORK (AP) — U.S. stocks are drifting near their record heights Tuesday, while Treasury yields keep marching higher amid expectations that the economy will pull out of its slump after a powerful recovery sweeps the globe later this year. The S&P 500 was up less than 0.1% after flipping between small gains and losses in early trading. The Dow Jones Industrial Average