Christian Passivism

I have leanings on the subject. We all do, on any subject, at least if we are honest. However, this is a subject upon which I do not have a definite opinion formed yet. At both of the seminaries I have attended, the concept of just war is believed, as strongly as any other theological position. Furthermore, the guys holding these positions are no dummies either. I sat through quite a few lectures from John Frame, listening to his defense of just war. I am just not sold on it. The problem is, I do not really like the alternative either. We are certainly responsible to defend Truth (the Gospel) at all costs, even our lives. The question is: How do we do this? We are definitely commissioned to defend the Paschal event with all we have, however, I do not think we are called to repeat it. Mainly because that is the point of Christ's necessity, we could not, Christ could and did. With all this is mind, Christ won through the appearance of losing, but is that our call as well? I do not mean we go Charlemagne and bring the Gospel with the sword, but when if ever is it OK as Christians to defend ourselves through violence? I will pose it like this. One of my ethics professors, who will go unnamed, stated that we are to live by the platinum rule. He explained this rule like so... if your are interrogating a suspected terrorist, to find out where a bomb is, you may torture him. The reason... because if he (the terrorist) were a Christian, he would tell you, and if you maim him, and one day in the future he becomes a Christian, he would thank you for maiming him, so as to force him to do the right thing (telling where the bomb is located). I am very interested for other people's opinions on the subject. It seems very relevant given the war on terrorism, the war in Iraq, and George Bush's take on these things being that he says he is a Christian.