Mark Zuckerberg Wakeboards Holding American Flag As US Media Pans National Symbol By Marvie Basilan Flag Day 2020: Americans Honor And Celebrate The Stars And Stripes Facebook CEO Mark Zuckerberg posted a video of himself surfboarding while holding the American flag in celebration of the U.S. Independence Day, even as several media outlets offered bleak and cynical comments about this year’s Declaration of Independence anniversary. In the video that Zuckerberg posted on Instagram, the tech mogul holds up the American flag as John Denver’s “Take Me Home, Country Roads” plays in the background. Twitter users have since been sharing his video on the platform.