They were just little girls when they were killed in what came to be known as the 16th Street Baptist Church Bombing. And now Addie Mae Collins, Denise McNair, Carole Robertson, and Cynthia Wesley have been awarded the Congressional Gold Medal, nearly 50 years after the attack in Birmingham, Ala.

Alfonso Portillo was taken from a hospital bed in Guatemala City and flown to New York to face charges of laundering $70 million through U.S. banks.

Treatments with drugs and implanted devices have made it much less likely that people with heart failure will die suddenly. But this chronic disease is still a common killer, researchers say.

In the aftermath of the destruction in Moore, Okla., residents throughout Tornado Alley want storm shelters installed in schools. Some schools in the region already have them, but funding to build new ones is hard to come by.

Seven months after Hurricane Sandy slammed into the Jersey Shore, Asbury Park is still waiting for insurance and federal aid money. In the meantime, it borrowed $10 million to repair the waterfront in time for the critical Memorial Day weekend.

President Obama delivered the commencement address at Annapolis on Friday, challenging the U.S. Naval Academy graduates to help redefine national defense in the 21st century.

In Oklahoma on Friday, state emergency officials said Monday's tornado destroyed 1,150 homes. An unknown number of structures were damaged. The state has registered more than 1,800 insurance adjusters.

Melissa Block talks with Timothy Marshall, a civil engineer and meteorologist who has been tracking tornado damage in Moore, Okla., over the past 15 years.

Citi Bike, the country's largest urban bike-sharing system, will soon be rolling in New York City after almost a year of delays. The idea has worked elsewhere, including Paris, Washington, D.C., and Montreal. But critics wonder if it's safe to add tens of thousands of new cyclists to the crowded streets of New York.

Robert Siegel talks with Adam Davidson from Planet Money team about this week's cluster of positive data on the health of the U.S. housing market. Davidson says the strength of the housing sector is now irrefutable, even though a broader economic recovery is still years away.

Hurricane Sandy devastated the state's coast last fall. But along 80 percent of New Jersey's shore this summer, "you won't notice any difference," says Gov. Chris Christie. He wants tourists to know that.

A series of tornadoes struck the central United States this week, including a powerful storm in Oklahoma that killed at least 24 people. Marshall Shepherd, the president of the American Meteorological Society, describes the ingredients of major tornadoes, and how they are predicted.

Populations of frogs, salamanders and other amphibians are declining at an average rate of 3.7 percent each year, according to a U.S. Geological Survey study released this week.