As an institution, the US Navy can hardly be respected no matter what happened on 9/11. The Office of Naval Intelligence seems to have been specifically targeted on 9/11, and high ranking Navy officials have played along with the coverup. This is dishonorable and treasonous. A black mark on the honor of every single sailor in the US Navy at the time.
Navy personnel at the Pentagon on the morning of September 11, 2001, including some key officials, appear to have acted with a surprising lack of urgency after they learned of the terrorist attacks on the World Trade Center.
Even though the Navy–along with the rest of the United States military–was responsible for protecting America if it was under attack, its personnel at the Pentagon seem to have done nothing, or very little, to help defend the country after they learned of the plane crashes at the World Trade Center. Remarkably, many of them continued with their normal work duties as if nothing unusual had happened. Furthermore, the Navy’s top officials appear to have issued no orders to their personnel, regarding what to do in response to the crashes.
The failure of Navy staffers at the Pentagon to promptly initiate a military response to the attacks is particularly significant because, among other things, the Navy had assets–including fighter jets–that could help defend the Northeast U.S. A quick response was critical so these assets could be deployed as soon as possible.
Navy personnel should also have responded immediately when they learned what had happened at the World Trade Center because their department would have been responsible for helping the rescue efforts in New York. The Navy was supposed to coordinate with the Army and the Air Force “on proposed action to support civilian authorities during emergencies involving mass casualties,” according to the Department of Defense’s book about the Pentagon attack. 
What is more, even before 9/11, the Pentagon was considered a likely target for terrorists. And yet, on September 11, Navy personnel–many of whose offices were damaged or destroyed when the Pentagon was hit–received no orders to evacuate and made no attempts to get out of the building of their own accord before it was attacked. And, apparently, no attempts were made to move the most senior Navy officials away to safer locations prior to the attack on the Pentagon.