Biggest US mole Aldrich Ames dies in federal prison in Maryland

Aldrich Ames — one of the most damaging spies in U.S. history — has died at the age of 84 while serving a life sentence in a Maryland prison. Ames, a former CIA counterintelligence officer, sold U.S. secrets to the Soviet Union and later Russia for nearly a decade, compromising dozens of agents and sensitive operations. His betrayals are blamed for the deaths of Western operatives and one of the worst intelligence breaches of the Cold War era.