At the low-water bridge below Tom Miller Dam, west of downtown Austin, during the summer of his tenth or eleventh year, Ken Roberts had his first encounter with cedar choppers. On his way to the bridge for a leisurely afternoon of fishing, he suddenly found himself facing a group of boys who clearly came from a different place and culture than the middle-class, suburban community he was accustomed to. Rather, "...they looked hard--tanned, skinny,...