Vast mounds of rubbish fester on the city's streets where the truly destitute sift for scraps of aluminium or plastic to sell in a hand-to-mouth struggle to survive.
This revealed that people exposed to second-hand smoke were far more likely to have poorer hearing than others, and to a degree where they might struggle to follow a conversation in the presence of background noise.
Tongue in cheek and hand on heart, Waters re-imagined the civil rights movement as the struggle to desegregate The Hop.