'I was employee number one': SpaceX co-founder reacts to firm's market debut

Tom Mueller was the first employee at SpaceX, a company he co-founded with Elon Musk in 2002.

Now, more than two decades later, the company is about to make its public market debut, with an estimated worth of more than $1.8 trillion.

The BBC's Michelle Fleury spoke to Mueller about Musk's vision.