Dozens killed in wave of Baghdad violence.

“A suicide car bomber struck a busy Baghdad commercial district Monday, killing at least 21 people, setting vehicles on fire and damaging a nearby Sunni shrine, police and hospital officials said. … Insurgents carried out several mortar and car bombing attacks throughout the capital Monday and even waged a lengthy gunbattle with police in broad daylight. The wave of violence, which killed 36 people across Baghdad, came despite a nearly 15-week-old U.S.-led security crackdown in the city.”