I received the following request by e-mail. Any help would be appreciated:

Miles,

The man (sorry I don't kow his name) who wrote a series of TV programmes called 'The Atlantean' (shown on RT? a few years ago) has now written an updated book about the subject, the term 'Atlantean' is in the title. I heard a radio interview with him while I was driving the car, that is why my information is so minimal. He had recently had access to DNA data regarding the ancient people of Ireland. From what I remember he said that the Irish were a happy mix of people and that the gene pool had not changed greatly over thousands of years.
Sorry I couldn't remember more. Maybe someone else heard that interview too or remembers the author's name.

Anne Marie,

That would be Bob Quinn. He was at the Earth Day event back in 2000. nice guy. Must look out for the book.

Anthony,

Thanks! Yes, I think that is the man's name.

Anthony and Miles,

I found details about the book:

The Atlantean Irish: Ireland's Oriental and Maritime Heritage by Bob Quinn, The Lilliput Press, Paperback , 2004