"The songs feel like they were written for this moment. It's sort of the theme of the Joshua Tree tour."
- Bono, 2017
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.