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Adding some details to an initiative he announced during his latest State of the Union address, President Obama on Tuesday said that federal agencies plan to spend $100 million to jump start an effort to map the human brain. It's research that could lead to breakthroughs in the treatment and prevention of brain disorders.

The government-controlled mortgage giant Fannie Mae, which needed a $116 billion federal bailout after the housing bubble burst in 2007, said Tuesday that it earned a record $7.6 billion in fourth-quarter 2012 and $17.2 billion for the year.

Good morning.

Our early headlines:

-- North Korea's Latest Threat: It Will Restart Nuclear Reactor

-- Atlanta Educators Accused In Cheating Scandal Start Turning Themselves In

Ongoing coverage as 35 educators from Atlanta's school system turn themselves in to face charges related to that city's cheating scandal:

Updated at 7:53 p.m. ET Atlantic Public Schools Superintendent Beverly Hall Surrenders.

Former Atlanta Public Schools Superintendent Beverly Hall arrived at the Fulton County jail just after 7:30 p.m. Tuesday.

The Connecticut women cruised into the Division I basketball championship's Final Four Monday night with an 83-53 win over Kentucky. In the evening's other matchup, California squeaked by Georgia, 65-62.

The Final Four's other two slots will be filled Tuesday night. Notre Dame faces Duke, while Tennessee takes on Louisville. (Check the brackets here. The games are being broadcast by ESPN.)

The daily lowdown on books, publishing, and the occasional author behaving badly.

A vow Tuesday from North Korea that it will restart a nuclear reactor that eventually could make about one bomb's worth of plutonium a year further escalates tensions that were already high due to that nation's almost daily threats, NPR's Louisa Lim tells our Newscast Desk.

According to Louisa, who filed her report from Beijing:

We told you in February about Aereo, a service that allows its users to watch TV over the Internet. As we said at the time, the service was attracting waves of lawsuits.

In an unusual move on Monday, Apple CEO Tim Cook apologized to Chinese customers over the company's warranty policy and vowed to improve customer service in the country.

One of the stars of the MTV reality show Buckwild was found dead Monday in an SUV along with his uncle and a third, as-yet-unidentified person, the Kanawha County, W.Va., Sheriff's Office said.

The bodies of Shain Gandee, 21, his uncle David Gandee, 48, and the third person were inside a 1984 Ford Bronco in a wooded area near Sissonville, W.Va., about 15 miles from Charleston. A statement from the Sheriff's Office said there was no sign of foul play.