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The Julian Assange extradition case has put Sweden's relatively high rate of rape under the spotlight. But can such statistics be reliably compared from one country to another?

Ruth Alexander investigates and finds out which countries are the surprise leaders of the world kidnap league, and why even murder rates are difficult to compare internationally.

Plus, who went home from the London 2012 Games with more medals – Olympians or Paralympians?

(Image: A woman sitting on bed with her head in her hands. Credit: JIM VARNEY/SCIENCE PHOTO LIBRARY)