-Note: This only works with the map editor. You can reduce "Corruption" to minimal from the "Government" tab of the edit rules window by setting"War Weariness" to none for the democracy government.
-Make any government immune to propaganda and other spy techniques to reduce corruption.
-Note: This only works with the map editor. From the "Government" tab of the edit rules window, change the "Immune to" box to whatever desired. Note: This will only prevent one type of spy move, not all.