On the eve of Sudan’s historic elections, we profile a “lost boy” who returned to aid his hometown. Plus: medicating foster kids, more “fixing America” and advice from Peter Sagal.

In light of the Arizona shooting, we revisit a story on gun rights. Also: Two Haitian children treated in Boston after the earthquake, a look at high speed rail and author Peter Bergen on al Qaeda.

This week, we visit with parents struggling to maintain care for their developmentally disabled adult children in the face of budget cuts. Plus: where are Michael Vick’s dogs now? And: the Amy Chua phenomenon.

Getting older in the car-dependent suburbs, the State of the Union and the state of the Congo. Plus: an animated editorial by Steve Brodner.

Amid the upheaval in Egypt, we turn our attention to the political tension between Egypt and the U.S. Also, the defunct “death panel” provision, a new scan for Alzheimer’s, and “Reagan.”

As the nation debates how to get the best performance out of students and teachers, Need to Know presents an hour devoted to success stories in teaching.

How many universes are there? Author Brian Greene explains. Plus: A fracking update, a look at what’s next in Egypt and an interview author Parag Khanna.

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We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

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A special edition on the ten-year anniversary of 9/11. We visit three military families to see how the nation’s longest war effort has affected military children. Also: Six-word memoirs on 9/11, and an “In Perspective” essay from Jon Meacham.

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We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.