The Taliban soldiers who were holding American soldier Bowe Bergdahl captive wanted to know if Barack Obama was gay, he said.
Sgt Bergdahl, 29, fled his Afghanistan base in 2009 and was held by the Taliban for five years.
Now facing a court martial for desertion and misbehaviour, he has spoken to filmmaker Mark Boal, who produced The Hurt Locker and Zero Dark Thirty, and the interviews are being broadcast as part of the podcast Serial.
In the latest instalment he tells of how he twice tried to escape, and how the Taliban guards were curious about America.
“They ask you, is Obama gay and sleeps with men?” he said.