Torture is wrong. I know there are arguments that we have to extract information that could save other lives. These are bad arguments, because a person who's being tortured will confess to things he has not done, or provide knowledge of events and plans that she does not have - just to make the pain stop.
What's more important with this issue is that when we use torture against our enemies, we lose the moral high ground. When we do something dehumanizing to another person, we forget that they are sinful people created in God's image just like us. When we torture innocent people, we've crossed a line. And it's really hard to come back. Torture is wrong.