Officially, the United States has lost nuclear weapons in six incidents in which the nation couldn't retrieve or destroy them. We look at these six incidents and learn how nuclear weapons work. See omnystudio.com/listener for privacy information.

Some tweaks to the bill that would require TikTok parent company to divest itself of the app or face a US-wide ban could be closer to becoming a law. AI takes to the skies in simulated dogfights. And about half of all online traffic comes from bots. Plus lots more! See omnystudio.com/listener for...