Thats like a west african leader inviting a rival over for dinner.....
Its kinda interesting... some have hypothesized there are places on this planet where people built structures or took natural shelters to avoid detection from the air...
To think we are here alone and planet earth is the only place is kinda narrow thinking. To think we are the most advanced? America may be clever relative to the rest of the planet.... but there are other planets out there and other beings. Bigger, faster and smarter. Lets hope not meaner and eviler... I have had my fill of that religion of Gabriel.