The hearings were televised. No one was anonymous. It is a felony to lie to or mislead Congress regardless of being under oath.
Actually it is not, otherwise Hillary Clinton would be in prison. They may say that it is and selective prosecute some. Hillary Clinton has been lying to Congress and misleading Congress for a number of years and she is still walking around. Until Hillary is either hanged [my preference] or in prison [something I would settle for] there is no justice in the United States. We revert to the Rights of Kings.