Bad Brains were black D.C.-area punks with Rasta leanings who energized Eighties hardcore kids with a series of beautifully messy albums. This reunion disc, with fan Adam Yauch producing, explodes and skanks like their classic records, setting pulverizing near-metal like the fifty-six-second "Pure Love" alongside thoroughly stoned reggae like "Natty Dreadlocks 'Pon the Mountain Top." It lacks the...