At first glance, the works in Carrie Mae Weems's recent series, "From Here I Saw What Happened and I Cried," all look the same: framed with wood and protective glass, each presents a red circle surrounded by a black mat. But as you study these red-and-black compositions, which are arranged in groups of four, a face or figure appears in each circle, saturated in crimson and obscured by single words or phrases sandblasted on the glass. Sometimes the images are recognizable ...