Testing any of these claims or counter-claims is difficult.

ECONOMIST: POLITICS BRIEF: The people’s voice | The

The Sunshine to Petrol project is testing a prototype device called the Counter Rotating Ring Receiver Reactor Recuperator (called CR5 for short) which turns CO2 into carbon monoxide which could then form part of a liquid fuel.

CNN: Turning carbon dioxide into fuel

While pharmaceutical firms need to prove their drugs are safe with years of testing, dietary supplement makers can sell pills over the counter unless the government can prove their products are unsafe.

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Whether the budget is worse for poor people than for the better off is disputed, but Mr Osborne could have done more to counter the perception that it is for example, by means-testing benefits that go now to both.

ECONOMIST: Britain's budget

Earlier this week, it introduced milk and fruit cup options for its Kids' Meal and is testing combo meals that offer chili, baked potatoes or a side salad instead of French fries, and "carb counter" meals.

FORBES: Healthy Choices Supersizing Fast-Food Firms

But while there is compelling evidence that illegal, over-the-counter, and prescription drugs are playing an increasing role in traffic crashes, there are no standards or testing criteria for these substances, and their role in crashes is often under-reported.

WHITEHOUSE: Drunk and Drugged Driving: Not an Acceptable Part of Life