Experts warn of 'dead zone' in Chesapeake Bay from pollution

When the Conowingo Dam opened to fanfare nearly a century ago, the massive wall of concrete and steel began its job of harnessing water power in northern Maryland. It also quietly provided a side benefit: trapping sediment ...

Mystery of NSA leak lingers as stolen document case winds up

Federal agents descended on the suburban Maryland house with the flash and bang of a stun grenade, blocked off the street and spent hours questioning the homeowner about a theft of government documents that prosecutors would ...

In Yakutia, Russia digs for diamonds in permafrost

Diamonds are forever, and so is the permanently frozen ground of Yakutia in north eastern Siberia, home to huge diamond deposits that ensure Russia's supremacy in world production of the luxury stone.