How dangerous is politicizing COVID-19 origin research?

The China-WHO joint mission said it hasn't discovered the origin of COVID-19 after its investigation in Wuhan but that it is "extremely unlikely" the virus leaked from a lab there. Why is tracing the source so important, and what are the next steps?

Prof. Wu Zhiwei, Center for Public Health Research, Medical School of Nanjing University;
Einar Tangen, Former U.S. Prosecutor.

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