Nowhere in the Inland area is the crunch to house the poor more evident than in the Coachella Valley, where 15,000 migrant workers are expected to arrive in the next few weeks for the grape and citrus harvest. Most will spend each night outside or crammed in a car or shed, said Nadia Villagran, special projects manager for the Indio-based Coachella Valley Housing Coalition. "They're working hard during the day and have to sleep at night in cardboard boxes, in a tree or in a car," she said. "It's shocking to see." Migrant-housing programs in the desert are confronting the...