Etan Patz case: Despite confession, a trial would be tricky (+video)

Brown calls on Harvard to 'correct record' on Elizabeth Warren's heritage

7:05 pm ET - Sen. Scott Brown wants to know why Harvard listed his rival, Elizabeth Warren, as a native American professor. The issue has not tipped the race yet, but it could, the Brown camp says.

NASA: SpaceX docking ranks near top of space-age 'firsts' (+video)

4:07 pm ET - The successful docking of the SpaceX Dragon capsule with the International Space Station Friday is a landmark moment in opening space to wider use, NASA officials say.

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Are terrorists beyond redemption?

12:33 pm ET - The record shows that some radicals can be persuaded to give up the gun when inducements and local conditions are right. The Pentagon recently spent $4.5 million to find out more.

• Progress Watch: For Saudi ex-jihadis: a stipend, a wife, and a new life
• Focus: Deradicalizing boys in Pakistan

Gay marriage: Judge overturns DOMA, stepping up pressure on Supreme Court

3:58 pm ET - A federal judge struck down the 1996 Defense of Marriage Act (DOMA), which precludes gay couples from receiving federal marriage benefits. She is the third federal judge to do so, suggesting that the Supreme Court might need to step in soon to clarify its position.

• Major gay marriage cases in federal court and where they stand

Iran nuclear talks a 'complete failure,' says Iranian diplomat

1:49 pm ET - Both sides spoke of 'some common ground' that will drive the next round of Iran nuclear talks set for mid-June in Moscow. Yet a chasm of mismatched expectations widened in Baghdad.

• Iran nuclear talks: What world powers are offering, Iran isn't buying. Yet.

What Congress has planned after Memorial Day

2:20 pm ET - Congress will be racing to complete a number of priorities between Memorial Day and the August recess, all under the shadow of massive fiscal issues looming at year's end.

Likely Egypt election runoff: Muslim Brother vs. Mubarak man (+video)

9:54 am ET - According to initial returns from Egypt's presidential election, Mohamed Morsi of the Muslim Brotherhood and Ahmed Shafiq, Mubarak's prime minister, are likely to face off in next month's runoff.

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• In Egypt's Islamist heartland, voters voice doubts about Muslim Brotherhood

Syrian doctors turn to smuggling supplies as war rages on

2:08 pm ET - Doctors, activists, and aid groups like Doctors Without Borders are teaming up with smugglers in Jordan to supply field hospitals for the injured in Syria's war.

Duck Lake fire sweeps across Michigan's Upper Peninsula

4:36 pm ET - The vast Duck Lake fire, likely sparked by a lightning strike and unusually high temperatures, hits at what's typically the end of the Michigan wildfire season.

In Brazil, a showdown over rainforest deforestation

2:27 pm ET - Brazil's president is scheduled to sign a reform package today that could retroactively legalize the deforestation of millions of acres in the Amazon.

France's Afghanistan pull-out signals war fatigue driving European defense cuts

11:47 am ET - Disillusionment with warfare, coupled with economic troubles, has given European defense cuts strong momentum. But defense experts worry they are being made too haphazardly.

• Keep Calm: Even if NATO rushes to the exits, Afghan collapse is not inevitable (+video)

Sudan and South Sudan to resume negotiations

1:06 pm ET - After weeks of fighting, in which South Sudan took out one of Sudan's last remaining oil fields, the two countries are returning to the negotiation table, under African Union mediation.