In speaking with media, highly public forums or to 9/11 truth newbs, I think ignore is the best approach. Any effort to bring them up is an attempt to associate, and divert from the good information you might otherwise present

However it imporant that we systematically refute them, and make these refutations public like the paper which examines the "no planes" thesis located at www.journalof911studies.com

Overall, we should not draw attention to these theories, but make the information refuting them available for those who need it.