Buildings become abandoned for many reasons, both before and after they're built. Tall skyscrapers can be especially pricey ...
Cockpit warnings logged by air traffic controllers show a record of persistent collision risks near Reagan National Airport ...
The Trump administration will present an unforgiving argument for dismantling the U.S. Agency for International Development ...
The United States has managed to recover seven UH-60 Black Hawk helicopters that Afghan army pilots used to flee the Taliban ...