Four Favourite Facts in the Last Seven Days

In Communist East Germany, in the 1950s, the state came up with a sanctioned dance for their teenagers to do. The idea was that they would dance together, but their hips wouldn't wiggle. So there's footage of it on YouTube, and it just looks like a normal sort of latin-y kind of dance. But then you realise that their hips don't move, and itjust looks odd. It feels like a reverse Irish dance kind of. Is that not right? Is Irish dancing just hips moving, but the rest of you know?