Khalid Sheikh Mohammed has knocked Nidal Hasan out of the headlines but the Fort Hood suspect is the kind of threat America needs to focus on, warns Daniel Henninger. Home-grown terrorists, indoctrinated over the Internet, are now more of a danger than "old-school" jihadis abroad, and the ideology that radicalizes them is currently protected speech, Henninger writes in the Wall Street Journal.
First Amendment law, Henninger writes, has never had to deal with "a widely distributed ideology that has as its raison d'être the mass murder of Americans and destruction of American property." The question of whether investigators should continue to face tight restrictions in their efforts to track "self-radicalizing" terrorists is one that should feature large in next year's elections, Henninger concludes.
(More Facebook stories.)