Only four teams remain in the NCAA men's basketball tournament: Kentucky, Louisville, Ohio State and Kansas. Kentucky already has seven national titles. Kansas has three championships, Louisville has two and Ohio State won its lone title in 1960.

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This is MORNING EDITION from NPR News. Good morning to you. I'm David Greene.

The American office furniture maker Steelcase is celebrating its centennial. Michigan Radio's Lindsey Smith explores the challenges of making cubicles and filing cabinets when both are in decline.

A selection committee in Hong Kong has chosen a former Cabinet chief as the southern Chinese financial hubs next leader. The voters were handpicked by Beijing. Leung Chun-ying's term will start in July.

Royal Dutch Shell can't pay the $1 billion it owes Iran because of sanctions imposed on the Middle East country by the United States and European Union. The sanctions have made it nearly impossible to transfer the money. Reuters reports that Shell is trying to wrap up its business dealings with Iran.

Posting on Facebook is an easy way to connect with people, but it also can be a means to alienate them. That can be particularly troublesome for those with low self-esteem.

People with poor self-image tend to view the glass as half empty. They complain a bit more than everyone else, and they often share their negative views and feelings when face to face with friends and acquaintances.

When the U.S. Supreme Court hears challenges to the Obama administration's health care law this week, the arguments will be complex, with questions about states' rights, mandatory insurance, and Medicaid.

To introduce those concepts — and to give the rest of us something to do while the court hears six hours of arguments — we offer a word search game. The grid below features many words you'll likely hear this week, as NPR's Nina Totenberg reports from the court.

It's the hottest ticket in Washington, D.C. Even the flossiest lawyers in town can't get a seat. Senators, congressmen, Cabinet and White House officials are all vying for a place.

At the U.S. Supreme Court, people have been lining up for days, waiting to hear this week's historic oral arguments on President Obama's health care law. The arguments will last for six hours over a three-day period, the longest argument in more than 40 years.

In June of 2009, a committee met at the University of Wisconsin-Madison to do a routine safety review of proposed research projects.

One of those projects involved genetically modifying flu viruses. And during the review, the committee brought up the idea of "dual-use" research. "Dual use" means legitimate scientific work that's intended to advance science or medicine, but that also might be misused with the intent to do harm.