Bill O’Reilly (pictured), who says the government shouldn’t defend San Francisco from Al Qaeda and has frequently sparred with the city’s leaders, has been bumped to late night by KNEW-AM 910. When it first went on the air in 2002, O’Reilly’s “Radio Factor” aired in the mornings from 9 to 11, but was clobbered by KGO’s Ronn Owens and KSFO’s Rush Limbaugh. In late 2004, the station moved him to the 7-9 p.m. slot. Then, on Monday, KNEW bumped O’Reilly to the 9-11 p.m. position. O’Reilly, who remains the top-rated cable news host, made headlines last November when he said the federal government should stop defending San Francisco because the city’s voters approved a resolution against military recruiting at high schools.