In the 23 years since the Iranian hostage crisis (and including that event), there have been 18 known fatal terrorist attacks against the United States perpetrated by radical Islamists. One, the anthrax attack last year, is of uncertain origin. Total dead numbers over 4200, with many more thousands injured. In the 19 years since 1983, they have attacked us at a rate of nearly once a year, and every year since 1998. There has been a distinct pattern as to the time of year these attacks have occurred. Of the 19 total, 13 (68%) have occurred in the Fall and...