Mysterious world

Today I received something in the mail that got me wondering. It was a postcard in a handwritten envelope with a first class stamp (no expense spared!) advertising a web site. This web site states that various heads of state are psychopaths. Mmmm, strange - in more ways that one. It seemed to originate in Edinburgh although I am not totally sure of this (blurred post mark). I am not in touch with someone who might have sent me this, do not know anyone in Edinburgh and am currently wondering if having my home address on the internet is wise. My family's reaction to this incident was telling me not to touch it as it might be infused with anthrax. I'm not sure whether to worry about their state of mind or the rest of the world's.