Two seemingly unrelated events from last Sunday night: the shooting of Congresswoman Giffords and Derren Brown’s The Heist was on TV in the UK. Let me tie them together. First, for those who aren’t familiar with Derren Brown, he is a brilliant magician, illusionist, hypnotist, and “mind reader”. If you watch his shows, you’ll see that he is a master of psychological techniques. On The Heist, the show that I watched last night, he did something quite extraordinary: he got three middle-class professionals to commit armed robbery– voluntarily. Well, a simulation of an armed robbery anyway. If you haven’t seen Derren Brown, you’re probably thinking that he used actors or accomplices. I don’t think that this was the case. They were …