IRAN will give a "calculated and decisive" response to the killing of its top nuclear scientist, said a top adviser to Iran's supreme leader, while a hardline newspaper suggested Tehran's revenge should include striking the Israeli city of Haifa. "Undoubtedly, Iran will give a calculated and decisive answer to the criminals who took Martyr Mohsen Fakhrizadeh from the Iranian nation," Kamal Kharrazi, who is also head of Iran's Strategic Council on Foreign Relations, said in a statement. Fakhrizadeh, long suspected by Western and Israeli government of masterminding a secret nuclear weapons program, was ambushed on a highway near Tehran on…