7 Sep 2014: Peter Preston: The number of abductions like Steven Sotloff's is startling. Does disguising the extent of the danger only threatens others?
Israeli prime minister Binyamin Netanyahu offers his condolences to the family of Israeli-American journalist Steven Sotloff who was killed by Islamic State (Isis)
US president Barack Obama reflects on the brutal killing of journalist Steven Sotloff at the hands of Isis, saying his life stood in sharp contrast to those of his killers
We look back at Apple's tech products, including game-changers such as the iMac and iPhone, curiosities like Lisa – and duds, like the 20th Anniversary Macintosh