Read this in its entirety before you scream.

In the event that Hillary Clinton's dark vision of the future ever comes to pass (God, forbid it!), history will record the clouded question of her role in the plot.

Just as a minority still attribute the assassination of JFK to Vice-President Johnson (one of many conspiracy theories), there would be some who pick at the psychic scab of another presidential hit for decades afterward and come to their own conclusions.

None of this is to say that Hillary has or ever would play any role whatsoever. Even I regard her as far above such diabolical plans. But she has raised the shadow of a direct threat, the specter of far too much in the balance. While she was speaking about the RFH assassination, her top fundraiser, Hassan Nemazee , was voicing an implied threat of Obama's failure if Hillary is not included on the ticket.

As he told TPM today: "It goes without saying that this argument is predicated on the fact that the single most important aspect of Senator Obama's decision is who is able to serve as president in a moment's notice should that need arise. And it is clear that Hillary Clinton fills that role."

A moment's notice. Assassination. Succession.

IF the worst were to happen to Obama, the one person the country could least tolerate to succeed him would be Clinton. The country would become a battleground of rumors and riots. Rather than stepping up to heal a nation, she would be viewed by too many as stepping in to reap the benefits of tragedy.

She cannot ever be vice-president under Obama. True, she is guilty of no more than ambition and poorly chosen words. But that is enough to rule her out completely now.