Does he have more than one? I've only noticed the one I've mentioned. If you look closely at any time Kiefer's left forearm is revealed, it's in the shape of an oblong roundish shape and has serrated edges, like maybe flames all around or something. I just wondered if it's some sort of abstract form or if it's a kind of folkloric paradigm or if it's a real/representational graphic.
http://desight.img.jugem.jp/20060412_163381.jpg
http://i52.photobucket.com/albums/g36/montyboosh/kiefer_sutherland_09.jpg