Often on Saturday, a choir (I think they might be Amish) sings in the busy Times Square subway station. They set up in front of a panel of back-lit ads that changes from week to week. On a recent Saturday, the juxtaposition of puritanically-styled singers next to a promo for the latest Alien flick seemed to carry a hidden message. The end is near? Ain't life funny? What we define as 'alien' is only a matter of perspective?