"[E]lBaradei, the former head of the International Atomic Energy Agency, had been due to be sworn in as interim prime minister on Saturday night, but the presidential office later appeared to row back, saying consultations were continuing. On Sunday, ElBaradei was reported to have cancelled an appearance on NBC's Meet the Press citing laryngitis and a fever."
http://www.guardian.co.uk/world/2013/jul/07/egypt-clashes-protests-new-government