First of all the Obama Regime said the information came from multiple detainees, so you have a problem if you want to hang your hat on one terrorist.
Secondly, you would have to assume that KSM was one of those detainees, and that the waterboarding that occurred before the information came out had no effect on KSM's willingness to talk.
Both of these would make sense if I wasn't rebutting the following claim:
Marcus said:Apparently the info that led the CIA to the courier which eventually led us to bin Laden was acquired by using the much derided water boarding technique on none other than Khalid Sheikh Mohammed and was consequently confirmed by water boarding a second detainee.
So you see you're arguing against something else entirely while I'm rebutting Marcus' claim specifically. Your point #1 and half of your point #2 actually support my argument. The second half of your point #2 (that waterboarding "softened him up" for later) is not the point that Marcus was trying to make (in which he claimed that waterboarding was the direct link rather than a far back in time indirect link) and is not supported by any evidence and is thus irrelevant.
Frankly, I value Cheney's informed beliefs over your "reasoned arguments" any day.
What is that opinion based on? He just baldly said it with no basis other than a belief that justifies things he already believed. He has acknowledged he has no inside information on the subject in his ABC interview today: "And I don't know the details. All I know is what I've seen in the newspaper at this point ... "
The Press Secretary and the chairman of the Senate Intelligence Committee, both of whom have a more current window than Cheney, are saying that there's no evidence that some key piece of information was obtained as a result of waterboarding. There is some evidence (reported by NPR today) that KSM specifically denied al Kuwaiti's involvement while being waterboarded. Those involved seem to indicate it was the culmination of a lot of intelligence gathered from a lot of different sources. Trying to say that the specific decision to torture a specific person was the key is specious and the worst kind of false patriotism.
Put frankly, if the killing of Osama Bin Laden is used to justify torture tactics going forward then everybody loses.