Employing existing libraries, scientists from Baylor College of Medicine identified several molecules that would target a pivotal protease in SARS-CoV-2 propagation. Efforts to determine more about the candidates were assisted by the X-ray crystallography data collected at the Advanced Light Source. https://biosciences.lbl.gov/2021/11/01/bcsb-determines-interactions-potential-inhibitor-sars-cov-2-protease/