Tony Thorne: What to make of the letter 'X'

The most commonly used letter in the English language is E, followed by A, and R. The least-used letter is Z, followed by Q … But the letter that has made headlines around the world is 'X'. Tony Thorne's been writing, teaching, and broadcasting about linguistic and cultural change for three decades, he joins us to discuss the conflicted nature of the letter, 'X'.