Pollard was a spy; he got caught, was tried, convicted and sentenced. There is no doubt he spied and badly hurt the US. Remember the saying, 'Against my enemies I can myself defend but heaven protect me from a friend." His sentence should have no bearing on the US relationship with Israel; which is a relationship of strong convenience. We cannot completely trust the Israelis nor should they completely trust us. Israel did not trust and Pollard became a willing victim of that mistrust. That he is ill and might die changes nothing. He should have thought of that when he started spying on US.
Law expanding definition of terrorist activity passes first Knesset reading (Haaretz)
from the article: Peres to Obama: Release Israeli spy Jonathan Pollard