Amazon competing with Walmart

This week, Amazon speeds up delivery even more. Plus, will BuzzFeed stay in business?

But first, Gecko, a robotics startup, landed a $71 million contract with the U.S. Navy. The 13-year-old Pittsburgh-based company says it'll be using its drones and wall-climbing robots to help find defects on ships. Then, it will use artificial intelligence to model current and future structural issues.

Marketplace’s Stephanie Hughes spoke with Anita Ramaswamy, financial analysis columnist at The Information, about all these headlines for this week’s “Tech Bytes: Week in Review.”