Bono & Edge during City of Blinding Lights

"In the past, when we went in the studio, we simply didn't know our craft well enough. On 'War', you can hear more of the arrangements coming from a bass-and-drum thing; the rhythm section's standing up. That means Edge doesn't have to play as much. On the first two albums, knowingly or not, he was covering up for a rhythm section that wasn't quite mature. We're a music tougher band now." - Adam on War, 1983