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One word: oversupply. Too many ships were built before the 2008 global economic crisis. This drove down shipping rates, forcing the industry to scale back. The effects are still being felt. This week, a Finnish shipbuilder said it would close a yard that employed 700 workers.

As people age, caps called telomeres on the ends of their chromosomes shrink. The observation has led some scientists to argue the shortening is not only a marker of aging but a fundamental driver of it.

There were 46.5 million Americans below the poverty line last year, the Census Bureau says, vs. 46.2 million in 2011. In another sign that the economy's recent growth hasn't translated into better times for many Americans, Census said the median household income was $51,017, vs. 2011's $51,100."

Twenty percent of high school seniors say they binge drink, with 6 percent consuming 15 drinks or more in a row. This extreme binge drinking accounts for high rates of emergency room visits by teen drinkers, researchers say, and poses a health risk that until now hasn't been adequately measured.

The good news is that the Congressional Budget Office projects the budget deficit will shrink in 2015. The bad news? After that, deficits will gradually rise.

For Latino parents, choosing what language to speak at home isn't a simple choice. Neither is it easy to find the right way to talk to children about weight and other issues. Host Michel Martin speaks with a roundtable of parents to get their advice on how to handle tough conversations.

Entrepreneur Fernando Espuelas speaks with host Michel Martin about why he thinks more Latino business leaders need to step up to the plate. Espuelas was named by PODER Magazine as one of "The Nation's 100 Most Influential Hispanics" in 2012.

Host Michel Martin kicks off a special broadcast in honor of Hispanic Heritage Month, by looking at some of the biggest political stories - in particular those resonating with Latinos. Martin is joined by Democratic strategist Maria Cardona and syndicated columnist Ruben Navarrette.

A school district in California has attracted some suspicion and much media attention for hiring a company to monitor the social media pages of 14,000 students. But an expert says teaching kids empathy is a better approach than spying on them.

Tufts University says that one of its researchers violated ethics rules while carrying out a study of genetically modified "golden rice" in China. The study showed that the rice can fight malnutrition, but researchers didn't provide enough information to the parents of the children who ate it, Tufts says.