A cursory search on Google shows some insight into the FBI story that has been preoccupying me over the last couple of days:
The Independent columnist, Chris Gulker's website was similarly afflicted, and he links back to mrry from here.
Tech Blogger Brent Simmons' weblog also received a mysterious hit from the FBI, but he's writing it off as a prank.
ahawkins.org and blog.jasonvelocity.com have been having the same experience, amongst others.
It probably is a prank, but since it was done after the first of April, the person who pulled it is the fool. So ner ner.