1 said:
http://www.vatican.va/edocs/ENG0141/__PP.HTM
This is an intrepretation of the Bible, not the Bible itself. There are passages that preach the famous "turn the other cheek" philosophy because by doing so you put yourself above the evil and into Gods hands. If you're arguing your pro-life stance from the position of a Christian then you need to do so from the new testiment. The preachings of Jesus supercede the Old Testiment when there is a conflict between the two.
The "Turn the other cheek" philosophy shows itself in many modernday religions.
Talmud: One should choose to be among the persecuted, rather than the persecutors.
Dhammapada: Victory breeds hatred, for the defeated live in pain. Happily live the peaceful, giving up victory and defeat.
Book of Mormon: For behold, they had rather sacrifice their lives than even to take the life of their enemy; and they have buried their weapons of war deep in the earth, because of their love towards their brethren.
Book of Matthew: "You have heard that it was said, 'An eye for an eye and a tooth for a tooth.' But I say to you, Do not resist one who is evil. But if anyone strikes you on the right cheek, turn to him the other also; and if anyone would sue you and take your coat, let him have your cloak as well; and if anyone forces you to go one mile, go with him two miles. Give to him who begs from you, and do not refuse him who would borrow from you. You have heard that it was said, 'You shall love your neighbor and hate your enemy.' But I say to you, Love your enemies and pray for those who persecute you, so that you may be sons of your Father who is in heaven; for He makes His sun rise on the evil and on the good, and sends rain on the just and on the unjust."
What you're dealing with is an interpretation of God's word. You will not find a passage where Christ advocates self defense---quite the contrary. What you will find is second hand subjective reasoning to support a position allowing Christians to "Defend themselves".
If you look at the reasoning for self defense and juxtapose that with Christ's writings you'll find the self defense may be worse in many instance than turning the other cheek. If you are righteous then your place in heaven and next to God is assured; however, the attacker's(sinner's) place in heaven is not. Self defense may lead to the death of the sinner thus fixing the sinners place in "hell" which is worse than allowing the sinner to live because---and here's the kicker---the sinner may change as Paul did. So, is it better to defend yourself or to 'possible' secure a place in heaven for another? That's a choice you ahve to make but do so knowing that Christ never advocated self defens.
My 2 cents.