DAKAR, Senegal — On the day he decided to run away, 9-year-old Coli awoke on a filthy mat.
Like a pup, he lay curled against the cold, pressed between dozens of other children sleeping head-to-toe on the concrete floor. His T-shirt was damp with the dew that seeped through the thin walls. The older boys had yanked away the square of cloth he used to protect himself from the draft. He shivered.