The Orange Jumpsuit Again

Looking back at footage of Paul Johnson when he was captured and videotaped, before his execution (whether he was beheaded after the fact or not is not known), we see again the US-style orange jumpsuit.

Just for the heck of it, I went to some overseas search engines trying to find places in Iraq and Saudi Arabia that sell orange jumpsuits. So far, none.

No, I'm not saying the orange jumpsuit is significant except that this isn't standard Saudi or Arab wear. It's sort of an American symbol. Why have at least two of the executed captives been wearing them? Is it a statement about Abu Ghraib, just a coincidence, or something more?