A friend or contact of one of the troubleshooters shows them to a clear corridor with glass floors, walls and celing high above a chasm. No walls are visable. The computer aparently has no survailence here. What does it mean? Is for a clearance abouve UV? Maybe a clearance below IR, a clearance level so low even mutants and commies can walk inhabit it with impunity? Who knows or dares to dream?