I think the real solution is the release of the letter to the judge, at least to Pollard's attorneys, which was the basis of his sentence, despite the fact that it might cast the use of secret evidence in a poor light.
Then we can all judge whether his sentence was disproportonate.
You just don't get it do you? Its not up to all of us to judge, but up to the presiding court. In a Republic, the citizens should have faith in our institutions. Pollard was given all the normal legal protections of the constitution in his trial. The end result of the fair legal process speaks volumes of his crimes.