WASHINGTON A company that claimed it developed a way to harvest stem cells from days-old human embryos without harming the embryos was accused at a Senate hearing Wednesday of misrepresenting its work. Advanced Cell Technology Inc. of Alameda, Calif., drew fire from Sens. Arlen Specter, R-Pa., and Tom Harkin, D-Iowa., authors of a bill vetoed by President Bush that would have expanded embryonic stem cell research through government funding. Supporters of such research say it could lead to treatments and cures for a wide variety of ailments, including Alzheimer's and Parkinson's disease and spinal cord injuries. Bush and abortion foes,...