But I wonder how that correlates to your opinion of the actions of others and your views in the ethics of interrogating terrorist suspects
I wonder if everyone recognizes the difference between an incident which is
1) Hypothetical
2) Singular. ("anecdotal.")
and the "real world": ie, not hypothetical, and containing lots and lots and lots of incidents. We should make policy based on the real world. If I'm plopped in the middle of a situation where the only way to save my family is torturing the bad guys, I'll do it. But I recognize that it's more likely I'm dreaming a Charles Bronson movie plot (Or was it Mel Gibson?) than participating in real events. And I still won't want torture to be policy. "Hard cases make bad law." Bloody heck, I'll kill someone in defense of my family, but I don't expect or need the laws on killing people to be any more permissive than they are now.
This also has something to do with the higher-standards we hold those in easily-abusable positions of power. Police, for example, have all sorts of hoops they have to jump through in pursuit of the bad guys. Police quite often, I'm sure, know exactly who's guilty as soon as they hear of the crime. But they have to jump through the procedural hoops because sometimes they're wrong, and sometimes they're just malicious. Relax the standards and they're likely to be wrong more often, and malicious more often: They'll be a lot more likely to get away with either.
Same thing holds for interrogations. What's excusable for a lone guy to do when desperate and put against the wall isn't necessarily a good idea when implemented as policy by the world's most powerful and - one would like to think - best nation. When it comes to torture I'd say it's a terrible idea. We have alternatives, and it's got way too many cons - "It's wrong." should be singled out for special attention - to be worth the rather dubious pluses.
I realize key parts of my argument include a couple of difficult concepts, so I'm going to go over them again:
1) Hypotheticals aren't more valuable than a large body of actual experience.*
2) We should avoid abuses of power.
3) Mobboss (for example) isn't a nation state.
*This is much of the reason we have sciences in addition to philosophy.
Note that we can make torture against policy and illegal and if someone really, really thinks they have to, they and/or Charles Bronson can still do it. It's been made illegal, not impossible. If, afterwards, they can demonstrate their over-riding need I imagine the court will be merciful. And if it isn't... well, if something was so important they were willing to torture I think they should have been willing to risk jail time. This is pretty much just putting torture with other heinous acts: If you do it the burden of proof is on you to justify - or at least excuse - it on a case by case basis.