On this episode of Slate Money, hosts Felix Salmon of Fusion, Cathy O’Neil of mathbabe.org, and Slate’s Moneybox columnist Jordan Weissmann.Topics discussed on today’s show include:-Why the UFC sold for 4 billion dollars-NBA salary cap, ode to unions -Will Rio survive the Olympics?Slate Money is brought to you by TrackR, a coin-sized device that locates misplaced keys, wallets, bags, computers—anything in seconds. Get 30 percent off your entire order by going to TheTracker.com and using the promo code MONEY. And by Goldman Sachs. To learn about developments currently shaping markets, industries, and the global economy, subscribe to the firm’s podcast, ‘Exchanges at Goldman Sachs,’ available on iTunes. And by Wunder Capital. Invest in large-scale solar projects across the U.S. Create an account for free at Wundercapital.com/money. Invest in Wunder Capital’s solar funds. Do well and do good. Learn more about your ad choices. Visit megaphone.fm/adchoices