Big Tech Fight Night: Cook vs. Zuck A new privacy feature in Apple’s iOS 14.5 requires apps to request permission to track you. And Facebook isn’t happy about it. WSJ’s Joanna Stern put Facebook CEO Mark Zuckerberg and Apple CEO Tim Cook into the ring to explain why this software update has kicked off a tech slugfest. Photo illustration: Preston Jessee for The Wall Street Journal Personal Technology With Joanna Stern Technology is overwhelming and making decisions about what gadget to buy is harder than ever. WSJ personal tech columnist Joanna Stern makes it all a bit easier in her lively and informative videos.