as we called it in those days to do research. first stop is at the berlin wall, and over here is the german parliament building. standing there, if you close your eyes, you can hear the incoming shell fire from the battle of berlin. you can still feel the horrors of the second world war, and then you open your eyes and can you see the free world and turn and look at the communist world. >> in west berlin, where democracy rules, these pictures speak for themselves. the citizens, well clad, walk freely. east berlin too reveals itself to the camera, citizenry stealthy, streets empty, drab is the word it describes, it seems. >> it's color and gray, it's motion and nothing. bret: nervous west german officials appealed to the white house to pick another location. they worried reagan might