"It's a sort of three year cycle. We spend like a year writing the songs, then a year recording them, and then a year selling them door to door." - Bono, 2009
did you know
In late 2004, "Mercy", an unreleased track taken from the How to Dismantle an Atomic Bomb sessions, surfaced on the Internet through a fan who had been given a copy of the album containing the extra track. The track is of less than standard audio quality, but managed to become a favorite on fan websites.