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Host Michel Martin checks in on the Winter Olympics, from the athletes to security. She talks with NPR's Sonari Glinton, and McClatchy's William Douglas, who are in Sochi for the Games.

Barbara Mancini was charged with assisting her father's suicide by providing him with a lethal dose of morphine. A judge's decision in her favor is the latest in a series of developments signaling a reluctance of courts and state legislatures to criminalize medical care that may hasten death.

Researchers from California's Lawrence Livermore National Laboratory say they've figured out how to get their laser to squeeze hydrogen atoms together to make helium atoms, releasing energy in the process. It's an important step in the decades-long quest for fusion energy.

Ray Nagin was indicted last January, when prosecutors said he engaged in bribery, wire fraud, money laundering, conspiracy and filing false tax returns.

The Senate has voted to extend the federal debt limit, giving final congressional approval to a bill that is meant to cover the government's finances into 2015. The measure passed on a 55-43 vote.

A Canadian study finds no reduction in deaths over the long haul for women who got mammograms to detect breast cancer beginning in the 1980s. It's the latest study to raise questions about the value of regular mammograms. But radiologists faulted the study as flawed and rejected its conclusions.

Slightly more women than men are signing up for coverage. The most popular plans are the silver ones, the third-most generous type among the four main kinds offered on insurance exchanges around the country.

Eager to follow their House colleagues out of Washington for a break, senators Wednesday cleared a raise to the debt ceiling for the president to sign into law. It will take the issue of limiting U.S. debt off the table until March 2015.

U.S. speedskating took a big hit in Sochi today, coming out of the 1,000-meter competition with no medals. The team's highest rank was eighth, earned by Shani Davis, who has dominated this race in the past.

A long-running study has been raising questions about the value of mammography for younger women, and recently it has produced yet more evidence to cast doubt on routine screening. The study found no evidence that screening saved lives, even after 25 years of follow-up. Rather, screening may lead instead to unnecessary treatment for many women. The findings are unlikely to settle debate over the value of mammography.