\\Although Shia Muslims take part in the march each year to mark the Arbaeen, or mourning, anniversary of Imam Husain - a seventh-century leader who fought for social justice - this year organisers decided to use the event as a platform to denounce terrorism following the recent Isis attacks in Paris, Beirut and elsewhere.//
aren't Shia Muslims moderate, so unlikely to be terrorists and they do this march anyway, add a few placards and its and anti terrorism protest.
Dave.