The U.S. military has at its disposal a powerful and underutilized weapon that must be effectively employed to prevail in the global war against Islamic extremists -- a lexicon stripped of terms that lend legitimacy to religious claims of groups that espouse, and carry out, violence. That argument is the thesis of a brief paper issued earlier this month by the National Defense University's new Center for Strategic Communications. The paper is circulating widely among top brass and is set...