After reading some of the letters, I would like to remind everyone that all countries spy on all the others, including their 'friends'. France and England spy on each other etc. etc. If it is true that Israel gave the names of US spies to the Russians, which I hope it is not, then Israel and not Polard is to blame.
Report in Lebanon: Israel Air Force strikes Syria's Quneitra, 3 terror operatives killed (Haaretz)
from the article: Ex-CIA director: I prevented move to release spy for Israel