[WikiEN-l] The vexed issue of sources

[Thomas Dalton]

> I've seen interesting documentaries on sasquatch sightings. Area 51 and
> perpetual motion machines. :-)

I said primary source - a documentary about area 51 is not a primary
source about area 51. It is a primary source about the documentary
itself, however, and in that respect is completely reliable. If the
documentary says "XYZ" then you can be absolutely sure the documentary
says "XYZ" - reliability is generally trivial for primary sources.