Good question!
Not too common a name.
Someone posted
VANITY- Is Cain Accuser who works for Obama also related to a Politico Reporter?
http://www.freerepublic.com/focus/f-news/2804350/posts
His twitter feed says: “If anyone was wondering, I am NOT related to Karen Kraushaar, the woman who accused Herman Cain of sexual harassment. Strange coincidence.”