The Economist's Democracy in America blog is right about pretty much everything in this post:
Everyone in Washington knows that a delay of a health-care bill this year will mean the death of health-care reform for the foreseeable future. But they can't say that.... The Republicans can't really afford to be this blunt, because the White House will happily use that against them.
It's worth pointing out, however, that the (anonymous) blogger is essentially encouraging Republicans to go ahead and lie about their dreams of killing health care reform.