Going through Checkpoint Charlie into gloomy and dark, dank East Berlin was always frightening. The Wall itself was ominous, the guards were the fiercest looking on the planet, and the barbed wire and landmines were right there for everyone to see. All of us have seen jaw-dropping spy movies about the infamous Friedrichstrasse and what happened on the other side of it. They were commies, after all.
Read MoreCommentary: When I Met Putin
