Anticipating Al Qaeda's Next Bomb Plot

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Intelligence agencies are revealing more about the plot to send package bombs to Chicago. We hear about a possible dry run in September, about al Qaeda in Yemen and about the threat to worldwide shipments of air cargo. Also, the ugly campaigns and angry voters of 2010 midterm elections. On Reporter's Notebook, stalled talks on Iran's nuclear program were on again last Friday. On Sunday, President Ahmadinejad said they're off again. We get an update on the talks and the growing impact of international sanctions.

Banner image: A Yemeni man leaves a branch of the US package delivery firm UPS in Sanaa on October 30, 2010. Photo: Mohammad Huwais/AFP/Getty Images