11 Apr 2010 Activists behind a website dedicated to revealing secret documents have complained of harassment by police and intelligence services as they prepare to release a video showing an American attack in which 97 civilians werekilled in Afghanistan. Julian Assange, one of the founders of Wikileaks, has claimed that a restaurant where the group met in Reykjavic, the capital of Iceland, came under surveillance in March and one of the group’s volunteers was detained for 21 hours by police. Assange, an Australian, says he was followed on a flight from Reykjavik to Copenhagen by two American agents.