PLN27

In the article "Aliens may exist but contact would hurt humans: Hawking", Reported by Stephen Hawkins, the article decribed the concern Mr. Hawkins had over Extra terestrails and there visitation or contact with Earth. Mr. Hawkins predicted that if aliens visided or came in contact with our planet it would spell disaster, he decribed it as Columbus visiting the indians of the americas. In the article Mr. Hawkins advised that contact with Extra terestrals or E.T's is not safe he decribed his image of E.T's as "Such advanced aliens would perhaps become nomads, looking to conquer and colonise whatever planets they can reach" is this somthing out of since fiction or is this a wise warning? What does this mean for modern socity is this just one more thing to worry about or is it another far fecthed tale of doom in the near future?