I didn't know there were so many countries down south... here's a list
of all the countries (thanks to About.com)

Antigua and Barbuda
The Bahamas
Barbados
Belize
Canada
Costa Rica
Cuba
Dominica
Dominican Republic
El Salvador
Greenland (Kalaallit Nunaat)
Grenada
Guatemala
Haiti
Honduras
Jamaica
Mexico
Nicaragua
Panama
Saint Kitts and Nevis
Saint Lucia
Saint Vincent and the Grenadines
Trinidad and Tobago
United States of America

-dr