In this week's episode of The Crypto Craze, Brad Smith and Tanaya Macheel take a look at the biggest stories from the crypto world. Bitmain runs into financial trouble ahead of its planned IPO. The Bitcoin mining giant says it lost $500 million in the third quarter of 2018. Plus, Facebook CEO Mark Zuckerberg chats with Harvard professor Jonathan Zittrain about the possibility of incorporating blockchain into Facebook's log-in process.