...The terrorist gang behind the train bombings in Madrid last year, for example, financed itself almost entirely with money earned from trafficking in hashish and ecstasy. Al Qaeda's affiliate in Southeast Asia, Jemaah Islamiyah, engages in bank robbery and credit card fraud; its 2002 Bali bombings were financed, in part, through jewelry store robberies that netted over 5 pounds of gold. In years past, many terrorist groups would have steered away from criminal activity, worried that such tactics might tarnish their image. But for hard-pressed jihadists, committing crimes against nonbelievers is increasingly seen as acceptable. As Abu Bakar Bashir, Jemaah Islamiyah's reputed spiritual head, reportedly said: "You can take their blood; then why not take their property?"...