BAGHDAD, Apr 26 : Car bombs ripped through commercial areas in and around the Iraqi capital on Sunday, killing at least 12 civilians, officials said.  The deadliest attack took place in Khilani Square, a busy commercial area in central Baghdad, where a car bomb killed at least five people and wounded 15, a police officer said. The car was parked near a Sunni mosque and a gathering of motorcycle vendors.     ?AP