SAN FRANCISCO – At what BIO CEO and President Jim Greenwood called a "Dickensian moment in the history of biotechnology – arguably the best of times and the worst of times" for U.S. industry players, new rules piloted by the Committee on Foreign Investment in the U.S. (CFIUS) have made things even more challenging. Confusion about CFIUS has led to a decline in Chinese venture capital investment in U.S. biotech and, at some firms, even a pause in cross-border investment as they wait for the dust to clear, experts said.