Given the much greater controversy likely to surround the IPAB when it is formed later this year, and the psychological resistance people have to abandoning deeply held beliefs, expect a recurrence of the death panel controversy as the ACA unfolds.

FORBES: Why It Is So Difficult to Kill the Death Panel Myth

But many expect that the new Hebron agreement -- limited as it is -- crosses the psychological barrier of mistrust.

CNN: Main banner

But, save for a sort of long face you'd expect when someone's dismissed for a low score, we seldom see any physical manifestation of psychological problems.

BBC: Bitter-sweet sympathy