SAN FRANCISCO (AP) - Peter E. Haas Sr., an heir of Levi Strauss & Co. who helped build the jeans company into a socially conscious clothing empire, has died. He was 86. Haas died of natural causes Saturday in his San Francisco home, company spokesman Jeff Beckman said Sunday. A great-grandnephew of Levi Strauss, Haas continued the tradition of the jeans pioneer, teaming up with his older brother, Walter A. Haas Jr., to transform the small maker of Western apparel into one of the world's most famous clothing brands during his 60-year career with the company. "Throughout his career and...