Aha, I found this statement about the song 'The Circle':

>>> ...four new songs, such as "The Circle," written after two significant events, the story of the disappeared ones (los Olvidados) in Argentina and the late Iraqi artist Layla Al-Attar, who was killed during the Clinton administration's bombing of Baghdad--the pilots missed the target. Al-Attar..<<<

So I was half right. The lyrics do mention Los Olvidados. I just didn't know about Layla Al-Attar.