Symbols and Designs
I noticed that someone has identified by name and possible reference, the symbol on the locker used by Desmond in his underground lair although, I did not see it on his uniform. However, there was also a very unusual design on Desmond's shirt in the "stadium running" flashback with Jack, which I've screencapped here:
image:DesmondShirt2.jpg 

Can anyone identify what this is, as it was shown repeatedly and clearly in multiple shots while Desmond was holding up Jack's ankle? Is it just me, or does it seem to be reminiscent of the "Anarcho-punk" symbol, such as this one: http://www.ahherald.com/images/news/2004/anarchy.jpg ? There's even what looks like an "A", in black, on the right of the design, turned on its side