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This Army major wanted to combine his military service with the hard science of biodefense. Read how Major Geoffrey Mattoon found his way to the Schar School’s one-of-a-kind graduate program—in the shadow of the Pentagon.

As a young policeman in Türkiye, Mahmut Cengiz witnessed the cruel effects of organized crime on communities and those who live in them. Now, the Schar School associate professor is a preeminent expert of terrorism and combats it on his own terms—as a teacher.