it pointless debating now

I don't think so, for 3 reasons:

1) Bush has demonstrated that Presidents can lie with impunity. That will be the case until Congress holds a President accountable for it.
2) In learning from the episode for future analysis of military options, it's imperative that we understand that invasion breeds terrorism, rather than disciplining it. Iraq must be seen as a place where terrorism was not until the US came - or we'll do the same thing again.
3) John McCain has the highest presidential-support voting record in the Senate. As we choose our next president, we have to ask why he supported these policies. Seems like either complicity in...

it pointless debating now

I don't think so, for 3 reasons:

1) Bush has demonstrated that Presidents can lie with impunity. That will be the case until Congress holds a President accountable for it.
2) In learning from the episode for future analysis of military options, it's imperative that we understand that invasion breeds terrorism, rather than disciplining it. Iraq must be seen as a place where terrorism was not until the US came - or we'll do the same thing again.
3) John McCain has the highest presidential-support voting record in the Senate. As we choose our next president, we have to ask why he supported these policies. Seems like either complicity in the lie or weakness of judgment. Will we hold him responsible?