A thin, green scanning laser flickered over us both from head to foot and then a section of the wall hinged smoothly back and down forming a passage inside. Glad to get out of the wind, I stepped nimbly into the niche and followed orange runway lights down a short corridor into a reception area, leaving Prescott to bring up the rear. As soon as we stepped off the walkway and into reception, the massive door slab rumbled upright and closed again. Solid security.