China infuriated by lab leak theory, points finger at US lab

A classified intelligence report from the Department of Energy assesses with low confidence that the Covid-19 pandemic likely came from a leak in a Chinese laboratory. The Chinese are pushing back. CNN’s David Culver visits the labs.A classified intelligence report from the Department of Energy assesses with low confidence that the Covid-19 pandemic likely came from a leak in a Chinese laboratory. The Chinese are pushing back. CNN’s David Culver visits the labs.