Larry King Live: Are Aliens a threat?

April 30, 2010 — Are Aliens a Threat?

Could space aliens be out to get us? Stephen Hawking thinks so and he tells Larry and YOU why! And, what he thinks an alien would look like!

If extraterrestrials could be a danger to us, as Hawking suggests, should we stop trying to contact them? Dan Aykroyd and others debate!