Each year 25,000 inmates are released in Huntsville, Texas — one of the largest prison towns in America. Monday through Friday, the glass doors swing open on the front of the Civil War-era, red-brick prison they call The Walls. The inmates exit and shuffle along the sidewalk, some smiling, some pensive, all shouldering onion sacks full of belongings. With no one to greet them, most of them stream past the private homes and prison offices toward the Greyhound bus station three blocks away. For hours, until buses have carried them off, there are lines of released prisoners everywhere near the station: a line for bus tickets, a line to cash prison checks, a line to buy new clothes.