This week on Lawfare's Arbiters of Truth series on disinformation, Evelyn Douek and Quinta Jurecic spoke with Claire Wardle, the co-founder and leader of the nonprofit organization First Draft and a research fellow at Harvard University’s Shorenstein Center. First Draft recently released a report on the information environment around the development of vaccines for COVID-19, and Claire talked about what she and her team found in terms of online discussion of the vaccine in English, Spanish and French. What kinds of misinformation should we be ready for as vaccines begin to be administered across the world? Why might fact-checking and labeling by platforms not be effective in countering that misinformation? And why is Claire still pessimistic about the progress that platforms and researchers have made in countering dis- and misinformation over the last four years?