Those craft exist and are very very real.
They have been used in the past, they have been filmed, they depart at incredible speed and they change shape and become invisible.
I will actually open another thread offering real cash to anyone that can explain the following pictures and videos and a lot more cash if someone can
proove that those things are birds.
Please before making any judgment take a long time to examine the evidences.
There are 7 of them they depart (in formation style) at incredible speed they are hidden within buildings and clouds. You can barely see them because
of the way they deflect light. The easiest way to spot them is actually concentrating on the pixelation of the buildings. Once they leave the shape of
the building changes because the light is not deflected anymore.
Again concentrate as well on the size of those BIRDS... Those are massive aircraft.
To make it easier I circled in red The most obvious one.
Before watching the video please examine the pictures and later on watch it over and over.
At 42 second they are very visible.
This issue has nothing to do with 911 so don't take it as a conspiracy towards 911. Its just a proof that those things exists. There are a lot more
videos with those things on 911.