David Cameron has condemned as "despicable and barbaric" the apparent slaughter of a second US journalist by Islamic State extremists - as it emerged that a British hostage is also under threat.
The U.S. State Department says it is "sickened" by a video that purports to show the beheading of U.S. journalist Steven Sotloff, adding that the intelligence community is working to authenticate the video. Rough Cut (no reporter narration).
Rebecca Adlington on her hopes for London Olympics 2012
Rebecca will line up with Britain’s best swimmers at The British Gas Swimming Championships, which doubles as the Olympic selection trials, from 3rd – 10th March 2012. There she will get her first taste of competition in the pool at the London Aquatics Centre, where she will be hoping to defend her titles this summer.