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Students at London's Kingston University this week unveiled luxury designs made of bio-degradable materials. There are stilettos made from pistachio shells and coffee beans, a wood-chip corset and a top made from orange peel.

David Greene talks to materials chemist Donald Sadoway from the TED (Technology, Entertainment and Design) conference in Long Beach, Calif. Sadoway is the co-inventor of the liquid metal battery. It's inexpensive, super efficient, sustainable and can provide large scale energy storage.

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RENEE MONTAGNE, HOST:

This is MORNING EDITION, from NPR News. I'm Renee Montagne.

The next big day for Republican presidential hopefuls is Super Tuesday. But on the way to Tuesday, the candidates are making stops in Washington state. Republican caucuses there are set for tomorrow morning.

And as NPR's Martin Kaste reports, with the fight for the nomination still tight, for once the caucuses in Washington state may actually mean something to the presidential race.

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RENEE MONTAGNE, HOST:

And in Michigan, there's a fight going on over one delegate to the Republican National Convention. Rick Santorum's campaign team says its candidate is a victim of, quote, thuggery. They accuse Michigan Republican leaders of engineering an after-the-fact rules change to give Mitt Romney a slim lead in delegates from last Tuesday's state primary.

We have more from Michigan Public Radio's Rick Pluta.

Renee Montagne has the Last Word in business.

The district of Baba Amr in the city of Homs had been the heart of the Syrian uprising, where mass protests turned into an armed resistance. Activists say government troops are combing the area, arresting any male over the age of 12.

Greece has taken almost all the action needed to secure a second bailout from eurozone countries, according to the head of the European currency group. The first loan can now be paid out by March 20, as long as Greece completes a bond swap between Athens and private investors, which should cut the nations privately-held debt in half.

The death of Pulitzer Prize-winning New York Times correspondent Anthony Shadid in Syria on Feb. 16 was a devastating loss for journalism and for the Middle East he did so much to illuminate.

But Shadid's voice is still with us — in the form of the memoir House of Stone, published this week.

In the late 1960s, while America was in turmoil over the Vietnam War and the assassinations of Martin Luther King Jr. and Robert Kennedy, a painter in Santa Monica, Calif., was creating a series of tranquil, glowing canvases that made his reputation and transfixed art lovers. Those works — the Ocean Park series — are now on view at the Orange County Museum of Art, about an hour's drive from the place where they were painted.

The airline hired the coach to train its flight attendants to speak in hushed tones while serving passengers. Crews will be trained on tone and volume. The low tones are reserved for Virgin's new upper class dream suite.

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Good morning. I'm Steve Inskeep. A suspect in Iowa will not have to go far to find a jury of his peers. Jury selection was underway in a court in Waterloo when a potential juror left her wallet on a bench. She returned from a break and found cash missing. Witnesses and security cameras in the court led authorities to a suspect. The man was another potential jury member. Police arranged a court date for him in the same legal system he had been serving a short time before. It's MORNING EDITION. Transcript provided by NPR, Copyright NPR.

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STEVE INSKEEP, HOST:

It's MORNING EDITION from NPR News. Good morning, I'm Steve Inskeep.

RENEE MONTAGNE, HOST:

And I'm Renee Montagne.

The battle over social issues in the Republican presidential primaries has extended through most of another week. This time the flashpoint was a remark by Mitt Romney. The former Massachusetts governor said he opposed, and then clarified that he actually favors, legislation involving contraception.

NPR's Tamara Keith reports it was not what Romney intended to discuss in Ohio.

Campaigning in Tennessee Wednesday, GOP presidential candidate Rick Santorum's camp took the opportunity to slam rival Mitt Romney for having a "liberal Record" on freedom of religion. At Nashville's Belmont University, Santorum spoke about his own views of religious freedom.

A federal appeals court hears arguments Thursday in legal challenges to tough new state immigration laws in Alabama and Georgia. The Justice Department and civil rights groups have sued. At issue are both civil rights violations, and whether states can constitutionally engage in immigration enforcement.

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