Andretti F1 Deal Off And Is Hulkenberg Joining IndyCar?

It looks like Andretti buying Alfa Romeo Sauber is no more, but why? There's also news of Nico Hulkenberg joining IndyCar after a test with McLaren and Williams have signed a young American to their academy. Join Katy and Tommy for a round-up of some of the biggest news stories in F1 right now.