Twitter's Whistle-Blower Subpoenaed and Y Combinator's New CEO

Bloomberg's Katie Greifeld, in for Emily Chang, breaks down why Elon Musk's team subpoenaed the whistle-blower who used to run Twitter's security. Plus, the tech industry's most prestigious business incubator, Y Combinator, names its first Asian-American CEO.

See omnystudio.com/listener for privacy information.