The parents of missing girl Madeleine McCann returned to Portugal today to launch a fresh charm offensive aimed at convincing sceptical locals that there is still hope of finding her alive. The day-long trip, which was also used to finalise plans to sue the former police detective Gonçalo Amaral, who has been openly suspicious of the couple, was the first time Madeleine's mother, Kate McCann, had returned to the country since being named as suspect in her disappearance in May 2007. The McCanns met lawyers and legal advisers before ....