Are the "United States Mint Artistic Infusion Program" people freemason?

I know that there are freemason symbols on the dollar blls. I can point them out easily. They are the ones who design money in the United States. And why did they show the 9/11 attack on the back of the 1,10,20,5 dollar bills? If you fold a bill a certain way than you can see the 9/11 attack. The pentagon building was suppose to be destroyed as well, its on the 5 dollar bill if you fold it right. You can google search how to fold it. So wouldn't that mean the united states government or freemasons (same thing?) planned it and bin ladin is just a excuse for the united states?