The Brain Is Not Irrational, It's Just Biased and Lazy, Which Are Different Things.

Greta Van Susteren says she's moved into the 'system two' camp of thinking. She argues that human beings are not flawed and irrational, but biased and lazy. The show takes a break for a word from its sponsors - now we return to our programme. We'll be back at 9pm on BBC2 with an exclusive interview with van Susteren.