The head of the Centers for Disease Control and Prevention (CDC) said there was "clearly" a breach in protocol that led to a Texas health care worker contracting Ebola after treating a Liberian man who later died from the virus, although authorities do not yet know what that breach was. "We're deeply concerned about this new development," Dr. Thomas Frieden said in an interview on CBS' "Face the Nation" Sunday. "I think the fact that we don't know of a breach in protocol is concerning because clearly there was a breach in protocol. We have the ability to prevent the...