The new “space race” for chips

A close look at how the latest silicon chips are made, what they’re used for, and why they represent “the new space race” at the heart of US-China rivalry. Presented by Rory Cellan-Jones, with BBC Online tech editor Leo Kelion. Produced by Jat Gill. (Image: Illustration with the flags of China and the USA behind a silicon chip, Credit: Getty Images).