Questions about Bribing

[kobayashi]

Do AI civs bribe the units of other AI civs and at what difficulty level(s)?

If you strike out some options in the spy menu, they are still available to the AI civs right?

Does the AI know how to use sea and air diplomatic units (against each other and against the human playher)?

[germanos]

a) The AI does bribe units and cities at Deity. Don't know about other levels.
In my experience, bribing an AI civ seems to make you more prone to AI-bribing as well.

b) Yes, the AI cheats as much as it wants

c) Dunno