News Wrap: Iran Says Attack on Syria is Attack on Iran; US Helps France in Mali

Iranian official warns: An attack on Syria is an attack on Iran... Thousands march for gun control in Washington... At least 5 die in shootings on bloody Chicago day... North Korean leader vows strong action... French forces take airport, bridge in Gao, Mali... US to support French in Mali with aerial refueling... Egypt riot over soccer verdicts kills at least 27... Casey Anthony files for ...