A 46-year-old former Royal Marine who braved 14 arrests and five months in jail to walk the length of Britain wearing nothing but his boots sets out on Thursday to repeat the naked journey -- and this time with his girlfriend. Stephen Gough and hairdresser Melanie Roberts, 33, will strip off and set out from Land's End in Cornwall, at the southeastern tip of England, on an 874-mile nude trek to John O'Groats in Scotland. "Why do it with no clothes on? To celebrate the fact that I'm a human being and that there is nothing shameful in being a...