From the BBC "At A Glance" site:

1100: Several people were wounded when a US warplane bombed two Iraqi buses carrying international volunteers, some of them American, who were operating as "human shields", Iraqi Information Minister Mohammed Saeed al-Sahaf says. There is no confirmation of this.

OK, you want to be a human shield. Isn't this a lot like being a javalin catcher in the Olympics?

What is the function of a shield? Its a self-sacrificing device.

So, if your a human shield for the Iraqi Army, you will die before the Iraqi's.

So exactly why are we surprised that they were injured in a war zone??

Also, isn't this "offering aid and comfort to the enemy"? This is the definition of treason.