Shorter and more eye-catching metallic ink print is more noticeable for customs.
Also it is more appropriate for your friends in everyday life.
Original Idea: http://cargocollective.com/4thamendment
Now there’s a way to protest those intrusive TSA X-ray scanners without saying a word. 4th Amendment Metallic ink-printed undershirts and underwear.
Assert your rights without saying a word.