I've heard it three times in as many months from British speakers on BBC
radio. I heard it again on the June 6 edition of "BBC Radio News Pod"
(though in this last instance it was subtle and fast enough that I may
have misheard). I used to assume that "nucular" was an uneducated
pronunciation in the United States, but that was just an uneducated
assumption. Dwight D. Eisenhower, Jimmy Carter (who served as an officer
on a United States Navy experimental nuclear submarine), Bill Clinton,
and George W. Bush have all used this pronunciation. Wikipedia has a
good entry on this:
http://en.wikipedia.org/wiki/Nucular
And Geoff Nunberg's "Going Nucular":
http://www.ischool.berkeley.edu/~nunberg/nucular.html
