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.
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.
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.
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.
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.