After his “Talking Points Memo” segment on Thursday, Fox News Channel’s Bill O’Reilly had Rep. Jason Chaffetz on to discuss the importance of the so-called Benghazi cover-up.

Chaffetz responded to a very animated O’Reilly, who demanded to know why the Utah Republican had not had former Secretary of Defense Leon Panetta testify under oath on whether or not he told President Barack Obama about the intelligence he had received, which indicated the attack was terrorism…