Who would you appoint as Earth's ambassador to alien races, and why?
Me, of course, or possibly one of a very few of my friends (such as the real life Carl Edlund). I don't trust ANY politicians to do the job right. I am reasonably well educated, but I don't know enough specifics to give away any secrets (assuming the Earth has any secrets of note to the alien visitors). I'm not particularly squeamish (though if they looked like giant spiders it might give me some difficulty), I'd love to learn anything they care to teach, I don't have any axes to grind for any of the world's more radical groups, and I'd simply be interested in making the contact work for both sides. Unless they turned out to be ravening bug-eyed monsters, in which case I'd have to hope that reading Doc Smith would allow me to transform myself into a Smithian Hero under pressure, because otherwise, hey, we're screwed. :)