Science: After decades of promises, the first clinical trial using human embryonic stem cells has begun. Again, the success stories using adult stem cells are ignored as ideology, and profit, triumph over science. The announcement by Geron Corp. on Monday that the first clinical trial using its embryonic stem cells to treat an actual human patient was under way sent its stock up 6.4%. Geron has the first FDA license to use embryonic stem cells to treat people, in this case a patient with a spinal cord injury. We wish the patient well, but using stem cells to treat disease...