Lightning could worsen Line Fire east of L.A. already threatening 35K homes, buildings  NBC NewsPhotos: Line Fire threatens thousands of homes in San Bernardino County  KTLA Los AngelesTerrible air quality, smoky conditions in parts of Southern California due to fires  Los Angeles TimesLine Fire near Highland burns more than 20,000 acres, forces evacuation: live updates  ABC7 Los AngelesThousands evacuate as wildfires rage across Northern and Southern California  Yahoo! Voices