Zuckerberg did what you are implying. He said what Congress wants to hear by saying Facebook's business model isn't based on Cookies. He is banking on Congress' poor track record of proving perjury and the law enforcement acting on it.

Other CEOs gave truthful answers, which is ... out of 10s of thousands of data points, I can't give you a blanket yes or no without commiting perjury.

You'd rather that CEOs perjure themselves?

I'd rather that them saying "no" didn't mean they were perjuring themselves

You think anyone of any company that employs more than a small handful of people can guarantee that a company policy has never been broken?

I don't see how you can guarantee this without also scrutinizing and monitoring employees to a level that would feel incredibly invasive.

invasive in the same way as employees looking at customer data is invasive?