CHICAGO — Three-year-old José was having trouble breathing as he writhed on the cold, wet mattress inside his family’s tent near the River North police station. It had snowed off and on all day, and ice coated the blue tarp that hung over tents lining North Larrabee Street. The moisture seeped up through the inflatable mattress. “Duele, Duele. It hurts, it hurts,” he cried out shaking as his ...