I’ve been watching the BBC’s Sunday night drama, “The Trial of Christine Keeler”. As the story unfolded, I was gripped. I was born in 1966, only three years after the Profumo Affair, but Christine had been on the periphery for me for years. What did I know about her? She was young, incredibly beautiful, usually described as a call girl or a model and seemingly irresistible to powerful men. It turns out I knew next to nothing.