New $20 bill contains 9/11 images

The english website of Aljazeera has a special section for conspiracy theories. Aljazeera poses the question "Coincidence or Conspiracy?" Of course the answer is always conspiracy even if you have to have to fold a $20 bill numerous times to find an image of the burning World Trade Center. Why would the US want to do this? I don't know why, but I bet the neocons and Israel had something to do with it.