Egypt is reeling from the horrific militant attack on a Mosque in the country's northern Sinai that killed at least 309 people. It is the deadliest attack by Islamic extremists in the country's modern history. President Abdel Alsisi has declared three days of mourning following the attack. Channel Africa spoke to the Head of the Religious Studies at the University of Johannesburg, Professor Fareed Esack about the attack and what it means for Egypt's war on terror.