I thought I used to listen, years ago, to an AM-MW station in Bermuda
called ZNS, but the _World Radio-TV Handbook_ assures me that ZNS is
actually in the Bahamas. Is there any MW or SW station in Bermuda that
can be heard, on the East Coast of the US at the very least?

Super pic:
http://www.noaanews.noaa.gov/stories...503-1915z2.jpg

Article:
http://www.noaanews.noaa.gov/stories/s2051.htm

Caribbean radio stations:
http://islandlinks.50megs.com/radio.html

Note that the _WRTVH_ does not consider Bermuda in the Caribbean,
which seems reasonable, because it isn't in the Caribbean.