It started in Florida with the pygmy rattlesnakes, killing 42 of them. Then, another 59 wound up dead.
When it happened in the earlier part of this century, mystified scientists couldn't identify the culprit.
Reports say that as of Sunday, November 11, 2012, Americans in 18 states have petitioned the Obama administration for secession from the union to "create [their] own new government." The petitions come within days of the presidential election.