“Obamacare may cost more than experts previously thought, according to a survey of 900 employers released Wednesday. As companies scramble to prepare for a wave of new health care rules that go into effect next year, an increasing number have become pessimistic about the cost, according to Mercer, a benefits consulting firm. Roughly one in five employers (19 percent) now expect that health care costs will rise by more than 5 percent as the result of the law.”