In four years, 28-year-old Gul Hasan went from laying bricks to recruiting suicide bombers. An antiterrorism court convicted Mr. Hasan this month of planning suicide attacks on Shiite mosques in Karachi that killed dozens of worshipers. Now he faces the gallows. How people like Hasan get involved with militant Islam, and what they do to recruit others, are questions of increasing urgency in Pakistan, which has seen a spate of suicide bombings in recent weeks. Full Story