Anybody ever been wipped out by spys?  I just had a challenging game were it stated raining spys.  I was near the top in research and had a mid-pack military, my economy was struggling due to the cost of ships that were necessary to keep up with the big boys.  I had been having troubles keeping up with spys all game.  Then at one point i was getting hit with 2 or 3 new spys about every 10-15 turns (and 1 spy mega event).  I was cranking out 1 spy of my own about every 15 turns, but couldnt keep up; my economy and moral quickly got flushed, and i ended up retiring because i saw no hope of ever recovering.   
