JERUSALEM–The instinct is to flee. Yet these men–they are all men, these Orthodox Jews in their black skullcaps–are drawn to the carnage of the bombings. In this tiny nation where no place seems safe anymore–certainly not the buses or the food stands along Hanevi'im Street or even the cafeteria crossroads of the Hebrew University–more and more Israelis wander through their lives with an eye over the shoulder, looking to see if their final hour is gaining on them. Not Natan Koenig. In the near 100-degree afternoon heat at Hebrew University last month, Koenig sat on his haunches, blotting the black-red...