Why does this man (aka POS) still have his job?

Section 1621 covers general perjury, and stipulates that anyone who "willfully and contrary to such oath states or subscribes any material matter which he does not believe to be true" is guilty of perjury and shall be fined or imprisoned up to five years, or both. Section 1001 covers false statements more generally, without requiring an oath. The section stipulates that "whoever, in any matter within the jurisdiction of the executive, legislative, or judicial branch of the government of the United States, knowingly and willfully" falsifies or conceals information, including before a congressional committee's inquiry, may also be fined or imprisoned up to five years.