This RAND blog post gathers the 10 research projects that resonated most with RAND readers in 2021. A collection of evidence-based research on critical issues – from the January 6th insurrection in the United States, to the impacts of the ongoing COVID-19 pandemic, to global security concerns amid US, Chinese, and Russian rivalries – this collection of research summarizes RAND’s objective, nonpartisan research and analysis over the past year.