When I was a NM, I knew about AI because it said that we did AI in my Frat Ed manual. I also knew about it because my chapter AI-ed women from my community when the chapter was installed.

However, after reading up on different chapters/orgs here, I know that not all people are aware that their GLO even did AI (if they even do). I don't know if the other NPCs has even addressed the issue to their members, but the Quarterly article Alphagamuga mentioned earlier pretty much explained to the Fraternity that a) yes, we have AI; and b) many AIs have gone on to do marvelous things for the Fraternity, even hold the office of International President.