In this photo provided by CBS News, the National Institute of Health's Dr. Anthony Fauci, the nation's top infectious disease expert, speaks on CBS's "Face the Nation" in Washington. Speaking on the Ebola virus, Fauci said it's perfectly normal to feel anxious about a disease that kills so fast and is ravaging parts of West Africa, but predicts there won't be an outbreak in the U.S. The Associated Press In this photo provided by CBS News, the National Institute of Health's Dr. Anthony Fauci, the nation's top infectious disease expert, speaks on CBS's "Face the Nation" in Washington.