IMO, the two sides are:

1) if it IS dangerous, then Saddam had WMD so we were right to go into Iraq, BUT we screwed up in losing the materials.

On the other side, you could say:

2) if it's not dangerous, then we screwed up going into Iraq becuae there were no WMD, BUT it doesn't matter that we lost it.


Which one would you like to support?