Riot police at Greece’s largest port cordoned off an area around an Israeli cruise ship that arrived early on Thursday to prevent several hundred protesters from approaching the vessel. Protests have been held at Greek islands and mainland ports along the route of the Crown Iris, several of which have led to clashes with police. At the port of Piraeus near Athens demonstrators held flares and waved Palestinian flags behind a cordon formed with riot police buses. Protest organisers, citing online posts from travellers, said off-duty Israeli soldiers were among the passengers. "They are unwanted here and have no business...