Though no guns were brandished, the bust from a distance looked like classic LAPD, DEA or FBI work, right down to the black "raid" vests the unit members wore. The fact that their yellow stenciled lettering read "RIAA" instead of something from an official law-enforcement agency was lost on 55-year-old parking-lot attendant Ceasar Borrayo. The Recording Industry Association of America is taking it to the streets. Even as it suffers setbacks in the courtroom, the RIAA has over the last 18 months built up a national staff of ex-cops to crack down on people making and selling illegal CDs in...