Reach out and touch an alien? Movies offer little guidance

2015/02/13 22:53:27 @Entertainment News Headlines — Yahoo! News

Astronomers are debating whether it would be a good idea to send signals into the universe, looking for extra-terrestrial life. Since we don & #039;t know who might respond, some argue we & #039;d be asking for cosmic trouble. Such is the dilemma often wrestled with in science-fiction movies, where aliens sometimes come in peace — and often do not:
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