Asked in a briefing, in February 2002, about the existence of Iraqi weapons of mass destruction, the American Secretary of Defense, Donald Rumsfeld, entered into a poetic reverie that unintentionally described risk. In his answer he declared: … as we know, there are known knowns; there are things we know we know. We also know… Read more »

Speeding Towards a New City There’s an old quip attributed to Henry Ford that no one was looking for the car to be invented; they just wanted faster horses. Even that is not true. What city-dwellers in the late 1800s had a problem with was manure. One early urban planner predicted that the biological waste… Read more »