WWJDT?

I feel as if I'm hat-tipping Mike at waving or drowning a lot lately, but perhaps he's just on about U2 a lot lately. Anyway, it was at waving or drowning that I found this post (which asks interesting questions itself) linking to Relevant Magazine's post of an audio clip of Bono speaking to an audience about truth in music and about worship in music. (I have to say I come down pretty much exactly where he does: never have been able to muster interest in mainstream CCM, but worship music is "something entirely different and that I'm interested in.") While some of the points we've heard before, I don't recognize the source and Relevant doesn't identify it. I have a guess, but am curious if anyone can tell us for sure where it's from?