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Ethiopian Prime Minister Hailemariam Desalegn (L) and Chairperson of the AU Commission Nkosazana Dlamini-Zuma leave the conference hall after the closing ceremony of the 20th Summit for the Africa Union in capital Addis Ababa, January 28, 2013.

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May 23, 2013

African Union officials says the leaders will reflect on the continent’s progress over the past 50 years and the path forward More

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Volunteers Help Revive LA's Concrete River

The Los Angeles River is a concrete drainage channel through much of its 80-kilometer length. It channels waste-water from storm drains and has become a receptacle for much of the city's trash. But as Mike O'Sullivan reports, the river is slowly being restored with the help of volunteers, who take part in an annual clean-up.