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According to police, three people were killed and 23 injured when two school buses collided in Knoxville, Tenn.
Dr. Anthony Fauci responds to a statement from the Ebola victim's nephew, who questions the treatment that Duncan received.
Do ISIS' slickly-produced videos emulate Hollywood movies? CNN's Brian Todd looked into the terror group's techniques and followed up his report by answering your questions on Twitter.
Here are some highlights from his Twitter Q&A:
The United States' strategy to degrade and destroy ISIS may be taking shape. CNN's Barbara Starr reports.
TV personality Kelly Ripa remembers her friend Joan Rivers, after the legendary comedienne passed away at 81.
In an interview with CNN's Jim Sciutto, Secretary of Defense Chuck Hagel expressed anger and outrage towards ISIS.
Barbara Starr explores the possible reasons why CNN was granted rare interviews with American detainees in North Korea.
U.S. officials are evaluating a video that allegedly shows members of a Libyan militia jumping into a pool at the Embassy.
The people of Donetsk, in Eastern Ukraine, struggle to go on with their lives because of the constant shelling.
Tom Foreman analyzes ISIS video showing the death of journalist James Foley to see what intel can be gleaned from it.