The U.S. government became aware of Kalymon after the fall of the Soviet Union. World War II-era archives that had been inaccessible revealed the names of people who may have concealed their Axis allegiance when they entered the United States.
Kalymon lives in Troy, Michigan, and came to the United States in 1949. He says he lied about his police work because he feared being sent to the Soviet Union. He became a naturalized citizen in 1955, and went on to work at Chrysler.
In 2007, a federal judge in Detroit stripped him of his citizenship, saying his two years in the Ukrainian police resulted in the persecution of civilians.
Kalymon says he did nothing wrong.