Pink Floyd founder Roger Waters was here in D.C. projecting a quote by President Dwight D. Eisenhower on buildings around town Friday and Saturday night. Let me say that again, because it bears repeating: Roger Waters, the guy who wrote “Wish You Were Here,” is using a laser light projector to display a line from President Ike’s Cross of Iron speech.

The quote’s a decent one: “Every gun that is made, every warship launched, every rocket fired, signifies in the final sense a theft from those who hunger and are not fed, those who are cold and are not clothed.” Ike had more District-appropriate sound bytes: “There are a number of things wrong with Washington. One of them is that everyone is too far from home.” And while it might be a bit minimal for Waters’s purposes, it’s another Ike saying that I like: “Who’s been counting my fish?”

I can only presume these light installations are an advertorial for Waters’s “The Wall Live” tour, which will stop at the Verizon Center (though not until October 10). People of Eisenhower’s generation grew up listening to Pink Floyd, so that explains the affinity. But what about these buildings? Can any readers out there ID them?

Sorry, Waters, but Yoko Ono beat you to this one.