And, of course, always for "good-bye." He was 88 years old. And the state department saying that secretary of state hillary clinton fainted from dehydration after an illness and got a concussion. She has canceled one trip and abc's senior foreign affairs correspondent martha raddatz has the latest on her concussion and joins us from washington. Martha? Reporter: Diane, this was a pretty serious concussion, although she is starting to feel better. Chef was home sick if a stomach virus after a long trip overseas. She apparently was so dehydrated she fainted and when that happened, you head hard. Chef was not taken to the hospital, but when she exhibited many of the signs of concussion, dizziness, headache, she was given all the appropriate tests to rule out anything more serious. I am told she was on an iv drip for a period of time and had someone looking after her for those first few days. Also told the secretary is frustrated by this and would love to get back to work, but when you get a concussion, you need to rest your brain. She will also be unable to testify about benghazi this week, although she will likely do that at some point in the future. But for now, diane, it is all about resting. Well, quite an incident. And this is a long time for recovery. Thank you so much, martha.