On a fiercely hot Tuesday afternoon, Yolanda Davis sits outside and watches her two children--a 10-year-old girl and a 5-year-old boy--ride bikes up and down weary Collins Avenue in South Dallas. Davis says she is 30 and does not work because she has a criminal record that keeps her from getting a job. So this is how she spends most days, perched on a patch of dirt and surrounded by friends and kinfolk who sip beer in the shade, shoot the breeze and wait for darkness before they head inside. Beneath their feet are empty cans, rusty nails and a pale green Ziploc baggie no bigger than a half-dollar--the kind in which drug dealers sell... More >>>