Counting the Dead in Iraq

Estimates of the death count in Iraq since the start of the war in 2003 range from 100,000 to about one million. Tim Harford explores why such a range exists and what methods are used to count those killed during war. And, he discovers why the death count has not stopped Iraq's population growing by almost a third in that time. He speaks to Glen Rangwala from Cambridge University and Patrick Gerland from the UN's demographics team.

Plus, the logic of imperial measures, as explored by Number Hub presenter Matt Parker.

(Image: Dozens of empty coffins covered with the Iraq flag arranged in rows. Credit: Getty Images)