SAN FRANCISCO (AP) — California firefighters expected to gain ground Sunday on a wind-driven wildfire that has scorched thousands of acres 60 miles (97 kilometers) east of San Francisco. The fire burned down one home and forced residents to flee the area near the central California city of Tracy. The California Department of Forestry and Fire Protection said the fire started Saturday afternoon in the grassy hills managed by the Lawrence Livermore National Laboratory, one of the country’s key centers for nuclear weapons science and technology. The research center was not under immediate threat from the blaze, which had devoured some 20 square miles by Sunday afternoon and was 30% contained.
