Having nearly exhausted their capacity for pop-song politics on War and The Unforgettable Fire, U2 turned toward themes of personal identity and complex relationships on The Joshua Tree. Not that the group was willing to come down off the barricades entirely: "Mothers of the Disappeared" and "Bullet the Blue Sky" turned a jaundiced eye toward Central America and the United States' role there. But the predominant mood here is one of self-discovery and the hunger for something more on tracks like the pulsating "Where the Streets Have No Name" and the gospel-ish "I Still Haven't Found What I'm Lo...
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