John Patrick Shanley and the Art of the 15-minute Play, at Chain Summer One Act Festival
 Following up on the recent Broadway revival of his Tony and Pulitzer-winning play "Doubt" and his new Off-Broadway hit "Brooklyn Laundry," John Patrick Shanley has written another new play this year, "Banshee," that's getting considerably less attention. This is not surprising, since it's running Off-Off Broadway…. for only four performances (the last one on...