Does the US spy on Israel too?

Shavua tov - a good week to everyone. For those who are wondering how an Orthodox Jew can be on the computer on what is the eighth night of Pesach (Passover) in much of the world, please go here.Does the US spy on Israel too? And why does it seem that instances of people spying on behalf of the Jewish state are a much bigger deal in America than spying on behalf of Russia or China, for example?