President Joe Biden on Monday signed a bill to declassify intelligence information about the origins of COVID-19. Congress approved the legislation unanimously. Sen. Josh Hawley, a Missouri Republican, introduced the bill March 1 after the Department of Energy said with “low confidence” it believed the virus leaked from a lab in Wuhan, China. How the pandemic began has led to competing theories. Some scientists have advanced the idea that the virus emerged as an accidental lab leak, while others say the evidence available favors the idea that an animal first infected a human. A team of virus e...