The Guardian: “Big-name signatories included Chuck Hagel, a former senator and defense secretary; Gen Michael Hayden, a former CIA and NSA chief; and John Negroponte, once ambassador to the UN. Robert Zoellick, a longtime aide to both presidents Bush and a deputy to James Baker, secretary of state to the elder Bush, was on the list too.” “Missing from the list, however, were Baker, the younger Bush and his own secretary of state, Condoleezza Rice.