Go read our Constitution. Treason is defined in it and Pollard's acts were not Treason.
You win the cigar. A man who actually reads the constitution, a rarity in this thread.
Maybe you should read the documents that Pollard had to sign in order to get his clearances. They clearly spell out the penalty for giving such information to ANYBODY not authorized, friend or foe. I know. I signed them too.
Pollard was guilty of espionage and he may have been guilty of treason if some of the information was sold to the Soviets.
Constitutional treason consists of four elements: (1) an intent to betray; (2) by means of an ovet act; (3)testified to by two witnesses; and (4) giving aid and comfort to the enemy. The Pollard case meets the first three. I guess the only real question is whether Israel can be defined as an enemy, for the purposes of treason.