Please, no hearings

Hugh Hewitt is beating the drum for a Congressional investigation into the case of the anachronistic memos. Why?

His answer is that CBS was tampering with our elections, but the founders understood that and passed the First Amendment anyway. What could be accomplished by such hearings, beyond embarrassing CBS further? No new regulations could be enacted. It would amount to a political show, but nothing more, and it would waste millions of dollars, without telling us anything we don't already know or suspect. I know that hearings give politicians an opportunity to bloviate, but they get enough of those already. I prefer the debate on the blogosphere.