Another dumb, "all nations are the same", comment.
Listen, KB, the United States publicizes such arrests because they aren't like China -- they're an open society. And if this had happened in China, the spy would have been executed instead of getting 48 months in prison.
And if the US is trying to dissuade anyone, it's their own citizens. It was a US citizen that is being punished, after all.
I guess it's not enough for some people that the West through sites like EETimes is giving away its technological and scientific heritage to the rest of the world (especially China). No. EETimes must be chastised for relating a story about China actively trying to subvert one of the very nations that, through its openness, is responsible for China's success.
China might at least say, "thank you", but I guess that's too much to expect.
Every country is engaged in such activities, even against "friendly" nations. By publicising such arrests, the US authorities are trying to dissuade the Chinese and embarass too. But such activities will continue from both sides.
To employ an individual to spy on his native country, in this case, the US (a country with competing interest) has long been a teaching by the greatest chinese military strategy guru, szun zeh. In fact, the first empire in chinese history, Qing dynasty, conquested enemies by promising financial rewards or by bribing out-right to the turncoats more than by bloody wars.