Despite Terry's quiet voice, it seemed the Professor had caught at least art of the conversation. ""I sincerely hope that Magneto will not turn his Brotherhood into terrorists. But given the....discussions I have had with him, that seems unlikely. I fear that he feels that war is inevitable, and he intends to strike first. How far those young men and women will follow him down that path remains to be seen.
As to the difference between us and terrorists of any sort, it is a question of method and restraint. The preservation of life is our highest priority. I will expect you to use the utmost restraint in any crisis situation. Do what you must to protect innocents and your teammates, but no more. We will certainly be facing opposition, but our goal will always be to prevent as much harm as possible. Though I fear the term vigilante has some truth to it."