Each time Downing Street has attempted to draw a line under it there has been yet another revelation to re-open it, and even escalate it.

BBC: More twists in Cherie Blair case

Obviously, you have situations where they can escalate out of control, but I will tell you: If you communicate and just demonstrate that you understand and have some empathy for the person and why they're there and how you happened to get there, you can de-escalate and you can prevent most of these situations from occurring.

NPR: Black And Blue: Police And Minorities