Iran says a scientist killed in Tehran over the weekend was not connected with the country's nuclear program, but the daylight killing and recent announcements by Tehran of nuclear advances have renewed scrutiny of the country's nuclear effort.
Iranian media said 35-year-old Darioush Rezai-Nejad was a promising graduate student. Officials speculated that his assailants — gunmen on motorbikes — may have confused him with a nuclear scientist with a similar name.
Of the million or so kids who drop out of school every year, nearly half are girls. They drop out for the same reasons boys do: they skip school, fall behind academically and they're bored. But the single biggest reason girls drop out is because they get pregnant.
Not a day goes by that Lauren Ortega doesn't regret quitting high school. When she turned 15, she got pregnant with her son.
Lake Tahoe sits right on the state line between California and Nevada, and the two states work together to protect the lake's ecosystem. The partnership has helped to stall the reduction in the remarkable clarity of the lake's deep blue waters.
But now Nevada wants out of the partnership if it doesn't get some concessions from California.
In remote places like California's Death Valley, over-reliance on GPS navigation systems can be a matter of life and death.
Each summer in Death Valley, a quarter-million tourists pry themselves from air-conditioned cars and venture into 120-degree heat to snap pictures of glittering salt flats. They come from all over the world, but many have the same traveling companion suction-cupped to their dashboard: a GPS.
The deadly collision involving two bullet trains in China last weekend is only one of many problems in the country's high-speed rail network. It's also plagued by corruption, undermining safety standards. A proud technological achievement has become an embarrassment.
Espen Barth Eide, the deputy foreign minister to Norway's government, talks with Mary Louise Kelly about last Friday's attacks by right-wing extremist Anders Behring Breivik that left 76 people dead. Eide's son survived the gunman's attack at a youth camp on an island outside Oslo.
Norway is starting a process of self-examination in the wake of last Friday's killings. In building an open and free society, there are those who believe Norwegians were too tolerant — even of those who threatened their society from within.
Weapons traced to a failed U.S. law enforcement operation that sought to take down violent Mexican drug cartels have been recovered at more than 48 different crime scenes in Mexico, including bloody kidnappings and gun battles that left more than a dozen Mexican police and cartel members dead last May, according to a new report by Republican congressional investigators.
There's long been a big gap between the wealth of white families and the wealth of African-Americans and Hispanics. But the Great Recession has made it much worse — the divide is almost twice what it used to be.
That's according to a new study by the Pew Research Center, which says that the decline in the housing market is the main cause.