DUBAI (Reuters) -Clashes between protesters and security forces persisted across Iran on Tuesday, with social media videos showing tanks being transported to Kurdish areas, which have been a focal point of the crackdown on protests over Mahsa Amini’s death in custody. Protests calling for the fall of the clerical establishment have swept Iran since Amini, a 22-year-old Iranian Kurdish woman, died on Sept. 16 while being detained by the morality police in Tehran for “inappropriate attire”. While observers do not believe the unrest, now in its fourth week, is close to toppling the government, th…