just saw the video by green day – it is arresting. the song is obviously john lennon gold. it’s part of an amnesty international campaign to stop the genocide in darfur. yoko ono donated all royalties from lennon’s song book to support this campaign. the resulting album, instant karma, has 20 john lennon covers by the likes of u2 and rem. you can buy it at amnesty’s website or by calling toll free 1-800-862-0411.