I was addressing what I thought was one of the criticisms of my scenario, i.e. its supposed implausibility. My point wasn't that torture could have prevented the 9/11 attacks but rather that terrorist threats that seem implausible, and only the stuff of Hollywood dreams, maybe aren't so implausible.
Yes, terrorist attacks have been committed which didn't seem plausible beforehand. Perhaps one of the reasons why the attack went ahead is that because it was implausible, the usual processes to identify the threat and attempt to neutralise it were ineffective.
The security services have finite capacity. Even if their funding was increased tenfold they would still have finite (albeit grater capacity). They need to focus their efforts on the greatest threats (most likely to happen and/or greatest impact) rather than attempting to identify all possible threats (not least because that's impossible).
How any of this relates to torture escapes me but I'm sure someone can join the dots for me.