Rescuers worked in frigid cold to reach 21 miners trapped underground Sunday as the death toll from a huge gas explosion in a northern Chinese mine jumped to 87 — the deadliest blast to hit the beleaguered industry in nearly two years.

The massive reservoir behind China's Three Gorges Dam was supposed to be filled to capacity this month. But landslides on the reservoir and water shortages downstream have delayed the process. Questions have been raised about the dam, which is the world's largest hydropower project, and what it might mean for the Yangtze River.

While President Obama weighs his options on Afghanistan, one thing is clear: The U.S. is beefing up its civilian presence there. The aid effort has been hobbled from the start, and many experts consider it a weak link in the struggle to build a stable society in the conflicted country. Deputy Secretary of State Jack Lew insists that the U.S. is now recruiting the right kind of people, but before those people head to Afghanistan, they get trained to work with the military at a base in Indiana.

This week, the Senate faced a crucial vote on health care. The Obama administration fended off criticism over Sept. 11 trials in New York, and Hamid Karzai was sworn in for another term as president of Afghanistan. Host Scott Simon reviews the week in the news with NPR Senior News Analyst Dan Schorr.

Iranian media reported this week that five people arrested in the protests following Iran's presidential election have been sentenced to death. Tehran says the prisoners had connections to "counter-revolutionary groups," but activists say Iran is going too far in persecuting dissenters. Host Scott Simon talks to Hadi Ghaemi, director of the International Campaign for Human Rights in Iran.

Brazil's ghettos are poverty stricken and violent. But there are people fighting against the odds to turn things around for the poor children of Rio de Janeiro. Among them is an unusual apostle: a Rio socialite who founded a school for slum-dwelling children and views education as an equalizer.

Two fingers and a tooth removed from Galileo Galilei's corpse in a Florentine basilica in the 18th century and given up for lost have been found again, a Florence museum said Friday.

When the Marines of "America's Battalion" first arrived in Afghanistan, they were eager to get into the fight against the Taliban. Now, as they wrap up their seven-month deployment — and after the loss of a dozen comrades — they see warfare in a different light.

News from Yemen has been dominated recently by an escalating rebellion along the border with Saudi Arabia. But the country has been making news for decades because of its severe overuse of a rapidly disappearing water supply, the result of natural and political causes.

Raging floods engulfed northern England's Lake District on Friday, killing a police officer and trapping dozens in their swamped homes. In Ireland, more than 3 feet of water shut down the center of the country's second-largest city, Cork, and more than a dozen other towns and villages.

Police arrested three members of a gang in the Peruvian jungle that allegedly has been killing people and draining fat from the corpses to sell on the black market for use in cosmetics. Medical experts expressed doubt about an international black market for human fat, though it does have cosmetic applications.

Two children and a policeman were among those killed in the blast, which wounded at least 23 others when the motorcyclist detonated the explosives in a busy city square in western Afghanistan, officials said.

Another man has been indicted on terrorism charges in a federal investigation into the recruitment of Minnesota Somalis to fight in Somalia.

Trade commissioner Catherine Ashton of Britain was selected as the EU's new foreign policy chief and Belgian Prime Minister Herman Van Rompuy was picked for president. Their appointments suggested the need for compromise outweighed the desire for big names like former British Prime Minister Tony Blair.

Two police officers were killed by a suicide bomber a day after 19 people were killed outside a courthouse in Peshawar. The bombings brought to eight the number of militant attacks in less than two weeks in the city on the Afghan border.