Can you point me to Greer’s writings? This is the first I’ve heard of it.
Steven Greer: Hidden Truth - Forbidden Knowledge
and
DISCLOSURE
Both may be ordered through his website:
http://www.disclosureproject.org/hiddentruth.htm
I was not in a hurry and did eventually find both through the central library system in Los Angeles, but had to wait a month or two until they were available. You can find them at Amazon and possibly in the UFO sections at some larger booksellers.
If you read them, I would value your opinion.