>
>
> SETI-- search for extraterrestrial intelligence--will NEVER
> detect aliens in the universe because no alien society, one that
> has weapons of mass destruction--wants to be detected. In fact,
> the key to survival is to remain hidden-- to not attract
> potentially hostile attention from other aliens societies who
> have weapons of mass destruction.
********
Ours would easily be detectable by an eti that happened to find our planet
[a needle in a spacetime haystack].
Of course, the issue of intelligent life on this planet is STILL open to debate.
Carl Sagan