Mood: spacey
I believe that aliens have attempted to contact humans many times in the past, but have failed. The outcome of these "contacts" have resulted in fanatical religious faiths that claim they are the only way to "heaven".
You can't put all the blame on the aliens for these failed encounters. Perhaps, mankind wasn't ready for advanced civilizations.
There is much on the internet about alien organizations and encounters. Information is available for those who want to seriously consider these possibilities.
Perhaps, your first contact with an alien will be after you die and you follow the light to a space vehicle.
The universe is a big place and we should be prepared to encounter diverse life forms in the heavens.
I have written many blog entries on this subject under the heading on the right called "Cosmic Views of the Universe".
It is time for us to prepare for "First Contact" with whatever is out there.