This is not new, and comes as no surprise to the Dem leadership, as Stupak has been saying repeatedly, from early on, that he has the votes in the Democratic pro-life caucus to kill this bill if it comes back from conference without what was formerly known as the Hyde language. They have been lying about federal money to pay for death from the very beginning, knowing full well that the Capps amendment securing payment for abortion was adopted in committee whereas Stupak's amendment, Hyde, was not allowed to be brought up for vote, nor was it allowed for vote in the full House. It was only when that last House vote was taken, Stupak and his pro-life colleagues necessary for passage to allow the bill to pass Constitutional muster (all bills raising revenue must originate in the House) that they relented and allowed his amendment on the Floor.
It comes down to the final conference language -- if Stupak and his colleagues are not satisfied with their specific denial language, they will kill the bill. If Stupak is satisfied, the pro-death Dems will kill the bill. If the public option language is not included in the final conference report, the Progressives and way-left Dems will kill the bill. All these factions must be satisfied and they are are all opposing each other.