his name was wolfgang samuel.a hut at the end of the runway, and there came a day -- there's a lot of love and marriage in this book -- there came a day when an american sergeant came to see his mother. you've got to remember, again, germany was almost a country without men. and he said to young wolfgang, my name is leo ferguson, call me leo. eventually leo ferguson married his mother. they moved to colorado, and wolfgang samuel retired a few years ago as a colonel in the united states air force. >> yeah. talking about the dangers these men went through flying into and out of berlin. i mean, the three corridors into berlin, one in the north, one in the south and then the central one, the ranges of return. but one of the things about i wonder if you could describe the conditions of landing at the airport in the center of berlin. >> well, the airport for any of you who have seen it, one of the most extraordinary places in the world. in the first place, on one side of it is a building. it's done in nazi gothic. it's