Essay:Why All Alaskans Are Mentally Ill
Maine is the part of the U.S. furthest from the equator (except for Alaska). This makes all the difference.  Large sheets of ice called "glashers" or something like that, and mountains and stuff keep all the people apart so that they get lonely.
Sunlight, what's that?
They suffer from chronic seasonal affective disorder.
And they have a lame, old-fashioned dessert named after them, which does not contain goat.
Valerie Plame is from Alaska, and she clearly has a persecution complex, thus essentially proving the hypothesis.