Since Arizona’s local law enforcement began enforcing illegal immigration laws and an employer sanctions law went into effect, illegal immigrants have been fleeing the state in large numbers. The effects have been far-ranging. Commuters are reporting fewer vehicles on the freeways, shortening their rush-hour commutes. What had become a serious transportation problem in Arizona is losing its urgency. English Learner Language (ELL) students started dropping out of school. This helped end a confrontation between the state legislature and a liberal federal judge who had ordered the state to spend more money on ELL classes. Fewer illegal immigrants are using hospital...