Oh, I thought you would go there later... I wanted to read Samantha's book she had written about her visit to USSR and the fictional book "You Are One of Them" by Elliott Holt that is based on Samantha's story but has the different ending...
As for questions for Samantha's mother... I am not sure whether it is good to ask her about her long ago deceased daughter... But if it is possible would you please ask her what she thought about the USSR the time she visited it and whether her opinion has changed from that time, what she thinks about the USSR now?