Firefighters battle biggest blaze in California history

Firefighters struggled against rugged terrain, high winds and an August heat wave Tuesday to slow the spread of the biggest wildfire ever recorded in California, an inferno that exploded to more than 450 square miles in just 11 days.The blaze, centered near the community of Upper Lake, about 100 miles north of San Francisco, spread fast because of what officials said was a perfect combination of weather, topography and abundant vegetation turned into highly flammable fuel by years of drought.The