Only when the espionage is on behalf of an enemy of the United States. Israel does not fit that category.
Please read the definition of "treason" - which for good reason is the only crime defined in the Constitution.
Though espionage on behalf of an ally is a crime, it should not be punished anywhere near as harshly as espionage on behalf of an an enemy.
How severely would you punish espionage, stealing our national secrets, and giving them to a country we’re not at war with?
A stern letter? Something in your permanent record?