A lot of people on this forum have trouble distinguishing between preemptive warfare and non-interventionism. Any non-interventionist can support preemptive tactics without sacrificing their non-interventionist ideals.
I disagree. If you assert to right to kill someone on the premise that someday they might kill you, then you are not a "non-interventionist". Because by virtue of that initial unjust act, you will have altered the public and political direction, and usually in a bad way. In fact, a preemptive bombing will do more to "intervene" than sanctions imposed by those you would label "interventionists".