text: Decades ago, a science fiction writer by the name of Arthur C. Clarke wrote a complicated science-fiction short story about a technologically-advanced society going to war with a less-advanced society -- and losing. It defeated itself.
  I feel RTD is defeating itself. Rather than use tried-and-proven sensor technology that railroad companies have used for decades, RTD apparently used computer-based sensors -- and now has to rely on low-tech security guards.