"Safety and security of the community"

"In a startling move, Carleton University's administration fired Diab, thus breaching their legally binding contract with him and contravening the collective agreement. But why? The letter Diab received did not state a reason for the dismissal. What we do know is that Diab's dismissal followed on the heels of a statement released by the Canadian chapter of the Jewish advocacy organization. B'nai Brith, a statement that suggests that Diab, who has lived peacefully and without conflict with the law in Canada for years, is a threat to "the safety and security of the community.""