To expand on my idea, just imagine:
Bullet The Blue Sky. Edge is ripping through that epic solo. It comes to a screetching halt, then Larry's beat picks back up again, Edge hits that droning low E, and Adam plays the groove.
Pictures of a war correspondent's family flicker over the claw, transposed with images of a war torn Middle Eastern country: Iraq, Iran, Afghanistan, whatever.
Bono goes into "yesterday, I spent asleep." Sings the song to the first "Return the call to home". The song builds, louder and louder, Bono and Edge harmonizing the "home" louder until Edge finally breaks out the slide for the classic Joshua Tree version of the solo.
Then, where the "we run into the arms of America" part usually goes, the song quiets down again. Bono and Edge return into a quieter "return the call to home". Then louder. Then louder. The crowd begins to chant along. Return the call to home. Louder. The band slowly fades out. Return the call to home.
And then we hear that familiar synth: Where The Streets Have No Name.
God, I wish I worked in the U2 camp.