It's amazing he's still alive after such alleged torture. Naked in solitary in subzero temperatures for more than a year? Soaked with ice water, sleeping on concrete, and he's still alive? I'm afraid Mr. Pollard is exaggerating a little in order to try and force Israel to demand his release. The only problem from the American point of view is that Pollard is an American traitor, regardless of which country he sold classified documents to.
Pollard knew better, and perhaps his sentence was more harsh than other traitors, but he continues as a gadfly in U.S. - Israeli relations.