"The last two records were very personal, with a kind of three piece at their heart, the primary colours of rock - bass, guitars and drum. But what we’re about now is of the same order as the transition that took us from The Joshua Tree to Achtung Baby."
- Bono, September 2008
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.