I have a much better question, Nazimutt: why are you claiming that there has been no congressional investigation when there have been at least five?
Make up your minds. If there has been even one Congressional hearing held in public you should be able to easily point me to the report.
Here's just one of the erroneous statements made in the report pasted above:
If an observer reads the committee transcript, it is clear that the senators all believed that the attack on the ship was deliberate, and did not believe McNamara’s statements to the contrary. During this exchange, McNamara simply lied to the senators, telling them that a Naval Court had concluded that the attack was accidental. (The court specifically avoided any statement about Israel’s motives.) The senators did not realize that McNamara had lied to them.