A group of extraterrestrials were sent to earth to monitor and/or stop the use of nuclear weapons. The first creature they made contact with was a chimpanzee. Mistakenly they mistook the chimp as being the dominant species of planet earth.

After scanning the chimp one of them looked at the others and said, “This must be a mistake, perhaps we’re on the wrong planet.”

One of the other Aliens said, “You may be right. It’s obvious these beings are far too intelligent to use nuclear power in a destructive way."