43 years ago, the NSA went in front of the Church Committee and claimed all of their warrantless phone surveillance against American citizens had been been closed more than a year earlier. This was a naked lie - the program was continuing unaltered even as the testimony was given.
The Church Committee went further than anything we have today - there was a major investigation aiming at criminal prosecution of NSA officials. The eventual conclusion was that their actions were obviously illegal, but that prosecution was impossible; the agency's charter appeared to exempt it from following surveillance laws, and broader charges would be deflected by "buck-passing" and subpoenaing high-level officials to disrupt government operations.
This is where we've been since the 1970s, if not earlier.
I'm not seeing how the FBI has made no effort to correct the record here, this article is citing the FBI. Is there evidence that this is not an official disclosure?
This is not a defense of his actions, just the reality he was presented with.
If the answer was no, he could say no.
/cynical/ if you could get easily prosecuted from telling Congress "incorrect" information, it might be predominantly used against lone whistleblowers who had ended up on the loosing side of a very effective information squashing campaign. That's just one example of how such a law could be abused if it was over-enforced. /end cynical/
Edit: if you're making a more general point, point cheerfully granted. :)
If congressional perjury laws were repealed, the only effect would be making the level of scrutiny that is necessary now obvious (in addition to protecting people from false accusations.) In a world where disingenuous speech can accomplish everything lying can, laws against lying are winking security theatre.
Lying in trials is not protected, but very rarely prosecuted. The penalty usually is that you lose credibility with the judge and jury, and piss them off.
> Were you trying to say lying under oath is usually very difficult to prove?
No, I'm saying it is rarely prosecuted at all, based on what I've been told by attorneys.