Sharks, WeWork & Tumblr's tumble from grace

Kara and Scott take on sharks, summer in New England, WeWork's IPO and Tumblr's fall. They also talk about how trade-wars with China are slowing down tech. Scott had a win this week when Nike added a "rundle" subscription service. Scott also gives a win shoutout to Harvard professor Raj Chetty for his research on how class and race function in US society.