If you mean that the pro-torture and anti-torture moral arguments are objectively equally strong, then you're really saying there isn't a moral argument at all and torture may well be OK if it worked.

Hrm.

Let's say rather that (a) I'm not as certain of the moral argument -- see above what Gen said about necessary-evil vs. indefensible-evil -- as I am of the pragmatic one, and (b) I think the pragmatic one is more likely to be convincing.