Former CIA Director and Florida Rep. Porter Goss in today's WaPo: Today, I am slack-jawed to read that members claim to have not understood that the techniques on which they were briefed were to actually be employed; or that specific techniques such as "waterboarding" were never mentioned. It must be hard for most Americans of common sense to imagine how a member of Congress can forget being told about the interrogations of Sept. 11 mastermind Khalid Sheik Mohammed. In that case, though, perhaps it is not amnesia but political expedience.