rights movement," with works by individuals-- including leading figures such as romare bearden and sam gilliamd so-called "collectives" formed in the 1960s and after, by artists seeking a greater voice in society. curator valerie mercer: >> the civil rights movement and the black power movement emboldened a lot of the african american artists. most of the mainstream art museums did not provide many opportunities to african american artists during the '60s and '70s. they were also very uncomfortable dealing with racial, social and political issues, so they avoided that work. now things are changing, fortunately. >> brown: several local artists attended the opening, including allie mcghee, who told me of his encounters with the national guard 50 years ago. >> i had people drive up, because i was out past curfew, and have a young man who's like 17, 18, scared to death, stick a bayonet in your ribcage. you don't forget stuff like this. >> brown: for this exhibition, mcghee contributed a painting from 1968, titled "black attack," and a later abstract work, titled "apartheid." since then, his art ha