Hi folks. In my last game, after finally crushing the Zulus after a particularly brutal war, I settled down to build my spaceship. I was about half way through when Roman spies started a wave of espionage - and destroyed three of my spaceship components! I didn't know this was possible. What espionage option does this? If it's sabotage building, what city is the spaceship component considered to be in? How can I do this against an opponent?