The Question That Keeps Me Awake At Night

It is well-known there is sophisticated missle silos on the roof of the White House. The Pentagon is LITERALLY within visual range of the White House.

On 911, via Fox and CNN news, I KNEW here in Louisiana that that plane was headed towards D.C. They were tracking it over 100 miles out. I wept in horror.

SO, WHY did the missle silos on top of the White House NEVER FIRE at a KNOWN HIGHJACKED, HOSTILE THREAT they HAD to have seen coming MILES AND MILES away...?

And all that is moot if you consider the defenses the PENTAGON itself MUST have. Is there no missle silos for the Pentagons self defense?

WTF is the point of the silos on top of the White House if NOT to shoot down incoming threats by air, ...? They could NOT have possibly known that that plane would hit the Pentagon and not them. Or did they?

Even So, WHY did the White House silos NEVER fire in defense of the Pentagon? WHAT are those silos FOR?

The dog did not bark, WHY WHY WHY???????