On Marketplace today there was a story, An old friend of the party assesses China's new leaders, about an American member of the Chinese Communist party, or as I like to call them the "ChiComs", An old friend of the party, the First American member, assesses China's new leaders. Sidney Rittenberg is over 90 at this point and has spent more than a sixth of his life in ChiCom gulags. He is still a committed communist. That takes faith. After the Cultural Revolution he got out jail and was repatriated to the US. But he still believes.
The message of his life and Johnny Walker Lindh is that some religious/political conversions should be considered the equivalent of voluntary abandonment of citizenship.