Re: Aliens May Exist But Contact Would Hurt Humans; Hawkings
One thing that even a cursory study of history shows, is that when two factions meet for the first time, unless they are reasonably balanced in technology and skill, the weaker society will be wiped out. The chances of any alien society being more advanced AND benevolent seems unlikely, since they will have had to have grown up in competitive conditions just like we have.
I agree that Hawking is probably not the best person to answer a question like that, but that is the wonderful world of science reporting these days. Most science writers don't have a clue as to what they are talking about and are just passing through on their career path.