Cross had nothing to do with it, he converted after tried, sentenced and imprisoned. However, since he elected to convert, treatment was no longer at hands of his own people. His treatment, past and present is far better than Jonathan Pollard has received at the hands of his Christian captors.
U.S. weighs sanctioning Russia as well as China in cyber attacks (Reuters)
from the article: Vanunu to return to prison for violating the terms of his parole