From '60 Minutes':
Jamie Metzl: I wouldn't really call what's happened now an investigation. It's essentially a highly-chaperoned, highly-curated study tour.
Lesley Stahl: Study tour?
Jamie Metzl: Study tour. Everybody around the world is imagining this is some kind of full investigation. It's not. This group of experts only saw what the Chinese government wanted them to see. ...
Lesley Stahl: I had seen that the World Health Organization team only spent 3 hours at the lab.
Jamie Metzl: While they were there they didn't demand access to the records and samples and key personnel. That's because of the ground rules China set with the WHO, which has never had the authority to make demands or enforce international protocols.
Jamie Metzl: It was agreed first that China would have veto power over - over who even got to be on the mission. Secondly -
Lesley Stahl: And WHO agreed to that.
Jamie Metzl: WHO agreed to that. On top of that, the WHO agreed that in most instances China would do the primary investigation. And then just share its findings -
Lesley Stahl: No.
Jamie Metzl: - with these international experts. So these international experts weren't allowed to do their own primary investigation.
Lesley Stahl: Wait. You're saying that China did the investigation and showed the results to the committee and that was it?
Jamie Metzl: Pretty much that -