Double-amputee veteran taking on 'world's toughest race'

Afghanistan veteran and double amputee Duncan Slater is making his second attempt to finish the Marathon des Sables, the equivalent of six marathons within six days in temperatures that can touch 50 degrees Celsius. Read more here: http://bit.ly/2ok18Av Subscribe for more from the ITV News team: http://bit.ly/1KMJ3gG