<p>Is John Major to blame? Are crisps a powerful political tool leveraged by politicians to influence voting? We investigate.</p>

Is John Major to blame? Are crisps a powerful political tool leveraged by politicians to influence voting? We investigate.

4. The Tory Plot

2 out of 3 people remember Walkers switching the colours of their Cheese and Onion and Salt and Vinegar crisp packets. But Walkers deny it ever happened. Are they lying? If so, why? The Walkers Switch investigates the greatest hoax in British crisp history.

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4. The Tory Plot

4. The Tory Plot