For the record, ISO 3166/MA is no more committed to permanency
for their 3-letter codes than their 2-letter codes, and for the
same reasons.
--
Barry gules and argent of seven and six, John Cowan
on a canton azure fifty molets of the second. cowan at ccil.org
--blazoning the U.S. flag http://www.ccil.org/~cowan