Robert Philip Hanssen was a former ‘Federal Bureau of Investigation’ (‘FBI’) agent, who became infamous as a notorious double agent of the intelligence services of Soviet Union and later Russia. He emerged as one of the most damaging spies to have infiltrated the ‘FBI’ resulting in probably the worst intelligence disaster in the history of the US. His twenty two years of espionage against the US began in 1979. He was finally arrested in early 2001 from Foxstone Park for trading classified information about the US to the Soviet Union and later to the Russian Federation. His espionage of more than two decades had earned him cash of over 1.4 million USD and diamonds. In mid-2001 he was tried in the ‘United States District Court for the Eastern District of Virginia’ on fifteen counts as a spy and was given a sentence of fifteen life terms without a chance of parole.