Spying is a very necessary part of international diplomacy. The truth is a spying ultimately prevents wars, arms races, and encourages open dialogue. Knowledge may be power, but it also dispels fear. Without fear parties are more likely to come to mutually beneficial agreements. While being ignorant usually makes you both fearful and distrustful. Which is usually a bad place to start from. In fact its more likely to allow a situation to spiral out of control. So while countries do actively try to thwart spying to keep their secrets. It is also true that most of them acknowledge the necessity. Just as the United States did during the Cold War. When it openly floated the idea of unrestricted fly overs of both Russian, and American territory.
Regardless caught spies aren't new, and neither is what happens to them. They usually get traded spy for spy. So give the new batch of spies five or six years, and most of them will be back in Russia. Either traded for a Western spy, or for some other concession. Personally I am less concerned by government spies then corporate spies. Those are the people that really make our lives that much harder.
