DENVER -- Doctors who postponed a kidney transplant between two men who met through a private organ donation Web site decided Tuesday to allow the operation to proceed, despite legal and ethical concerns about the surgery. The operation, scheduled for Wednesday, is believed to be the first transplant arranged through a Web site designed to match organ donors with recipients, said Jeremiah Lowney, medical director of MatchingDonors.com, where the two men made contact. Doctors at Presbyterian/St. Luke's Medical Center initially postponed the procedure to replace Bob Hickey's kidney as he was in a hospital room with IVs running from his...