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ISIS is allegedly using chemical weapons in Syria and Iraq, but U.S. officials have not confirmed these reports.
While the U.S. fights the spread of Ebola, the flu will infect far more people and can be deadly too. Tom Foreman reports.
CNN's Ivan Watson profiles an American solider fighting with a Kurdish militia against ISIS forces in Syria.
Legal cases are strengthening against Jesse Matthew, the alleged abductor of Hannah Graham. Brian Todd reports.
An officer is in critical condition after suffering a hatchet wound to the head in what the NYPD call a terrorist attack.