Glasnost?

I just learned something about The Sound of Music, which I love. I sing Edelweiss at least once a week. In fact, Sunday I was singing it to Kazoo (when he's being a punk, if I start singing he'll stop and come sit on me with his face all up in mine and stare lovingly at me-it's funny)and somehow it morphed into me singing America from West Side Story and then This Land Is Your Land, This Is My Country, Faith of Our Fathers, and finally Fifty Nifty United States which led into My Favorite Things, oddly enough. Shannon just laughed at me. Anyway, what I learned was that during the Cold War, BBC planned to air The Sound of Music in the event of a nuclear attack because it would 'reassure' the public. That's so awesome.