Iran said on Saturday it had arrested the head of a US-based “terrorist group” accused of being behind a deadly 2008 bombing in the southern city of Shiraz and planning other attacks. “Jamshid Sharmahd, who was leading armed and sabotage operations inside Iran, is now in the powerful hands” of Iran’s security forces, state television said, citing an intelligence ministry statement. It did not elaborate on where or when the alleged leader of the opposition royalist group known as the Kingdom Assembly of Iran, or Tondar (Farsi for Thunder), was detained. Iran slammed its arch enemy the United States for...