Elves, Christmas, Grey Aliens...
Here's the link:
http://www.ccg.org/english/s/p235.html

and here is a short excerpt:

"The Shetlanders name these holidays the Yules. Seven days before Christmas, the elves called Trows by the Shetlanders are let free from their homes in the earth and dwell above ground if it pleases them. This is the probable origin of the elf symbolism of and with Santa Claus. It seems to relate back to the concept of the misrule of the seven days of the Saturnalia leading up to 25 December.

The most important of the rituals in Yule was the saining, which had to be properly carried out to deal with the grey folk as the elves were called.

The modern myths emanating from the USA regarding alien greys, is none other than the revamping of the elves at Yule.

On the last day of the holidays, the twenty-fourth day after Christmas, called up-helly-a, or Uphalliday in Shetland, the doors were all opened and a great deal of pantomimic chasing went on to rid the area of the mischievous elves. People piously read the Bible and displayed iron ostentatiously "for it is well known that elves cannot abide the sight of iron." The infants were carefully guarded and sained by learned wise women. No doubt, we have the sign of the evil eye involved here as an ancient custom (cf. also the paper The Cross: Its Origin and Significance (No. 39))."

I mean folks, we got it ALL with this one, Christmas, alien breeding experiments (guard the baby) and those irrepressible GREYS! Streiber only begins to allude to this as a possibility, that the aliens of today are nothing more than the fairies, elves and demons of history. Of course we don't want to ascribe any motive to these entities (being politically correct like we are) but in case after case there is NO evidence of BENEFICIAL contact with these creatures.

It's good to remember that Santa started out as an elf, but it might be hard to think of the North Pole, elves and Roswell all in the same thought...