Forget Mitt Romney , the United Nations needs to go back to school to learn about Venn Diagrams. Business Insider — with the headline "This Is The Most Useless, Baffling Chart In Obama's State Of The Union"  — highlights this chart, cited by the White House to support the President's claims on renewable energy:
I… what? As Dan Davies  points out, the only way that chart makes any sense as a Venn diagram is if it's showing that around $10bn of renewable investment in China and the US is the same money. Which seems unlikely.
Anyway, it seems like a waste of time to remake our lovely primer on Venn diagrams , but for the chart-makers at the UN, here's an example of a real Venn diagram: