NEW YORK :U.S. stocks turned positive and crude prices were on track for their biggest weekly drop in a month as weak data and disappointing corporate earnings added to worries over softening global demand. Gold, meanwhile, muscled past the $2,700 mark for the first time ever. "Gold is having a strong run because of the breadth of uncertainties," Greg Bassuk, Chief Executive Officer at AXS Investments in New York. "It’s the safe-haven play and investors would be prudent to diversify their