It's not the first time for the US intelligence community to lie. In 2003, the CIA accused Iraq of creating weapons of mass destruction and ignited flames of war in that country. What followed were numerous deaths of civilians and collapses of families. However, facts proved that the so-called intelligence was cooked up by the US, and the “proof” was merely a vial of detergent.
Today, by making false allegations on origin tracing of COVID-19, some US politicians are trying to trap other nations. They believe such brainwashing would make people buy the so-called lab leak theory and stigmatize China.