If extraterrestrial life sent us a message tomorrow, how would humanity respond? According to researchers, we don't know yet — and that's a problem. That's why, for the first time in 35 years, a team of policy experts and scientists have united to establish a set of alien-contact protocols for the entire world to follow in the event of a sudden encounter with E.T. "Science fiction is awash with explorations of the impact on human society following discovery of, and even encounters with, life or intelligence elsewhere," John Elliot, a computer scientist at the University of St. Andrews in Scotland,...