Weekend All Things Considered

The U.S. military, along with more than 30 allied countries, has just launched a new round of naval exercises in the Persian Gulf at a time when tensions in the region are running particularly high.

But U.S. officials say the aim is not to increase anxiety, but rather to ensure stability. More specifically, the exercises are designed to deal with mines that could hamper shipping in the Gulf and the Strait of Hormuz, through which a fifth of the world's oil supply transits.

After decades of enforced silence, Singaporeans who spent years in jail without charges or trial are shattering a political taboo by speaking out about their detention — and the colonial-era security laws that made it possible.

The affluent trading hub — known for its solid rule of law — still allows the government to detain citizens indefinitely.

But people who say that the laws were used to abuse them and silence their dissenting voices are now talking — which many see as a foreshadowing of bigger political changes for Southeast Asia's wealthiest nation.

Second of a two-part series

Researchers have found the first drug to treat progeria, an extremely rare genetic disease that causes children to age so rapidly that many die in their teens.

The drug, called lonafarnib, is not a cure. But in a study published Monday of 28 children, it reversed changes in blood vessels that usually lead to heart attacks and strokes.

The income gap is receiving much attention lately as more Americans are isolating themselves around "people like us."

More accurately, they surround themselves with people who earn similar incomes, and it is now fueling a rise in residential segregation. One recent study suggests the income gap might be greater today than even during colonial times – even when you account for slavery.