As President Bush is preparing to invade Iraq, Wall Street Journal correspondent Asra Nomani embarks on a dangerous journey from Middle America to the Middle East to join more than two million fellow Muslims on the hajj, the pilgrimage to Mecca required of all Muslims once in their lifetime. Mecca is Islam's most sacred city and strictly off limits to non-Muslims. On a journey perilous enough for any American reporter, Nomani is determined to take...