U2 performed this at halftime of the 2002 Super Bowl between the Patriots and Rams.

As they played, names of victims in the September 11 attacks were scrolled on a giant screen. At the end of the performance Bono opened his jacket to reveal an American flag in the lining.

"Where the Streets Have No Name" is more like the U2 of old than any of the other songs on the LP, because it's a sketch - I was just trying to sketch a location, maybe a spiritual location, maybe a romantic location.

I was trying to sketch a feeling. I often feel very claustrophobic in a city, a feeling of wanting to break out of that city and a feeling of wanting to go somewhere where the values of the city and the values of our society don't hold you down.

An interesting story that someone told me once is that in Belfast, by what street someone lives on you can tell not only their religion but tell how much money they're making - literally by which side of the road they live on, because the further up the hill the more expensive the houses become.
That said something to me, and so I started writing about a place "where the streets have no name."

- Bono from Propaganda 5, 1987 (less info)