Notice all above him seem to be looking down in shock or sorrow...while below we see fire, Rumsfeld whispering in his ear...the prisoner dressed in black looks like some sort of satanic KKK figure...and one of his minnions is saluting.
That's right. It's a crude knock-off of Heironymus Bosch's hellish visions. Whatever things Time magazine may be accused of, subtlety isn't one of them.