Relation between USD20 and Sept-11?

Any two things are related. So are 20 dollar bill and Sept 11 tragedy. Follow the steps below and see for yourself.

1. take out a recent 20 dollar bill
2. fold it in half along the long side with white house on the outside
3. make "THE WHITE HOUSE" sign horizontal and upright
4. turn the left end 45 degrees right at the mid point along the long side, so it covers "THE WHI" vertically
5. turn the right end 45 degrees left at the mid point, so it covers "TE HOUSE" vertically

Here are the reference images: Pentagon in flame; Twin Towers torched.

This is not intended to be offensive in any way. I am just as amazed as you when I know it.