Former FBI Agent And Russian Spy Robert Hanssen Dies In Prison

Robert Hanssen, a former FBI agent who spied for Russia and the former Soviet Union, died in a federal prison in Colorado where he was serving a life sentence.
Hanssen provided highly classified national security information to Moscow for over $1.4 million in cash, bank funds, and diamonds over 16 years.
Hanssen's espionage led to the compromise of numerous human sources and classified documents, as well as the execution of intelligence operatives working for the U.S.
Hanssen used encrypted communications and "dead drops" to covertly provide information to his handlers until his arrest in 2001.
Although facing the death penalty, Hanssen pleaded guilty to 15 counts of espionage in 2001 and received a life sentence for betraying his country.