Torture, flogging, and summary killings are rife in secret prisons run by the Islamic State in Iraq and al-Sham (ISIS), an armed group that controls large areas of northern Syria , said Amnesty International in a briefing published today. ISIS, which is linked to al-Qa’ida in Iraq, is an armed opposition group whose fighters, all Sunni Muslims, are drawn from many countries. They claim to advocate a strict form of Shari’a rule and use extreme force to impose it in areas that they control or where they are present