For the Seton Hall Law School students who watched the Manhattan skyline from the windows of their school library as the Sept. 11, 2001, attacks unfolded, the chance to take a seminar on terrorism and civil liberties was too relevant to pass up. Each week for two hours, under the tutelage of a distinguished federal appellate judge by the name of Samuel A. Alito Jr., the students would hash out issues they knew were or soon would be a big deal as far as jurisprudence goes. Typical of the class, just working out a definition of "terrorism" took the students...