Most people thought developing the vaccine in record time would be the hard part. That, or shipping millions of doses at subzero temperatures to every corner of the country. But nobody--or, almost nobody--guessed that the biggest barrier between U.S. citizens and vaccination would be … online scheduling.  What went wrong with the vaccine websites? And what will it take to get them right? Guests:  Raphael Lee, director of USDR’s Health Program  Hana Schank, director of Strategy for Public Interest Technology at New America Jessica Allen Host Lizzie O’Leary Learn more about your ad choices. Visit megaphone.fm/adchoices