Rising gas prices, sporadic shortages are signs of the impending Tucson apocalypse

Stuck in traffic on a bridge over the Rillito River, I noticed dust trailing from three horses in the riverbed. My first thought: Where's the fourth? I was swept along in traffic before I could determine which of the biblical Four Horsemen of the Apocalypse was missing. Was it War, Death, Famine or Pestilence?

( Full story here )