John S. Masker (PhD Boston College) has taught at Temple since 2004. He has had visiting appointments at Williams College, Mount Holyoke College and Clark University. Masker has written about nuclear non-proliferation, Russian foreign policy, and U.S. foreign policy. In the 1980s he worked as a civilian employee of the Defense Mapping Agency and served as a U.S. Navy reservist. A former USCF Category 3 racer, Masker now limits himself to recreational rides, hiking and skiing.