BERKELEY, Calif. - Dozens of University of California, Berkeley, students took advantage of a break in the recent cold and rainy weather Wednesday to strip naked and protest the use of sweatshops to make college apparel. The revealing display in front of the building housing Chancellor Robert Birgeneau's office quickly attracted a crowd of about 300 onlookers, many of whom snickered and kept well away from the protesters. Some of the 36 or so male and female protesters remained fully clothed, while others demonstrated in nature's own. Past sweatshop protests - which did not feature nudity - drew little response,...