Patient receives first implant in U.S. to prevent cluster headaches
U.S. researchers implant a neurostimulator in a patient's cheek to provide relief from painful cluster headaches. This is the first time the device is being tested in the U.S, and hopes are high that the neurostimulator can short circuit the nerves that cause the debilitating headaches. Sharon Reich reports.
Arizona was hit by flash flooding following heavy rain on August 18 and 19. New River was badly affected, with rescues and road closures as emergency services scrambled to deal with the dramatic surge in water levels. Footage shows the moment a trailer, carried by the flood, smashed into a bridge. Credit: Darryl Gregory
U.S. will be relentless against Islamic State after beheading: Obama
President Obama is vowing to fight Islamic State after the militant group beheaded American journalist, James Foley. At a news conference, the president said "When people harm Americans anywhere, we do what's necessary to see that justice is done." Jillian Kitchener reports.