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' Clad in black leather and hooded jackets , Destiny 's Child sizzled through their own drill sergeant-like dance with flawless precision , with no sign of lip-synching despite the lung-exhausting routine . Escher as an inspiration , but the artworks themselves seem to build directly on Penroses 's impossible structures , with no sign of the contribution Escher made to our experience of them . With profound grief I think of the wake of violence and bloodshed , with no sign of ceasing , in the Holy Land .