"On a patchy section of lawn, beside a faded pink pre-fab, stood a pair of little girls. One had light hair and one had dark hair. One was short and one was even shorter. Both were unkempt, draped in mismatched dresses and leggings with holes in the knees. Grubby trainers were Velcroed to pigeon-toed feet and neon bands held unwashed hair in lopsided ponytails. Around their wrists were tied bits of string and stacks of cheap plastic bracelets. Between...