Violence in Beirut over blast investigation

Gunfire erupted on the streets of Beirut on Thursday, killing six people. The violence erupted when armed supporters of Shiite militant and political groups, Hezbollah and Amal, marched through a Christian neighborhood in protests against the judge presiding over the August blast investigation. And police say a bow-and-arrow attack in Norway Wednesday night in which a man is suspected of killing five people appears to be an "act of terror.” It’s the worst attack in Norway since Anders Breivik, the far-right extremist who killed 77 people in 2011. Plus, The World remembers Irish musician Paddy Moloney, master of the uilleann pipes, slide whistle and penny whistle, and co-founder of the Chieftains.