So not only does the USA break the Geneva conventions, but it breaks it with the official, written approval of its Commander in Chief. You think this is defensible? Think again.
Two choices:
1) Impeach former President Bush
2) Never but never think you have claim to the moral high ground again.
UPDATE: Krugman sums it up nicely:
"Let’s say this slowly: the Bush administration wanted to use 9/11 as a pretext to invade Iraq, even though Iraq had nothing to do with 9/11. So it tortured people to make them confess to the nonexistent link.
There’s a word for this: it’s evil."