The U.S. intelligence community is investigating whether or not the virus originated in a lab, but it “concurs with the wide scientific consensus that the COVID-19 virus was not manmade or genetically modified,” the Office of the Director of National Intelligence said in a statement last week.

While Pompeo has said he doesn’t doubt the intelligence community assessment, he has boosted the unproven theory the first human infection came from an accidental or intentional release at the Wuhan Institute of Virology. He first told ABC News’ “This Week” Sunday that there was “enormous evidence” supporting that unproven theory, before shifting slightly Wednesday to say there’s “significant” evidence, but the U.S. doesn’t have “certainty” yet.