"Ally"? Like an ally who spies on you?
I really don't care that much that Israel used spies against us despite ostensibly being our closest ally. I do care that this guy doesn't get a break for it, because the day we start saying "Well...... if you endanger our national security for a country with a really powerful lobbying group, we'll let you out early" is the day national security vanishes completely. You want to spy for Israel? Fine. You get the exact same treatment as if you were spying for the Chicoms or Russia.
I've never seen anyone on FR advocate for this spy to be ignored or released. Ever.
And if you think we don't spy on Israel, you're wrong.