Let him stay in his little KGB monitored one room apartment in Moscow and rot there.
Laurie, how horrible for you. I am so sorry that happened to you, but what courage in someone so young!"e has destroyed his personal life over actions motivated by ideology."
I have been imprisoned for refusing to enter a church that was not of my denomination, and for wearing my national emblem on my national saint's day.
I know about ideology.
You do what you feel you must, and live with the consequences.
He is, and was at the relevant time, a sentient adult (I, at least, was only 16!) and knew exactly what he was doing, and was fully aware of the consequences.