In one of the threads, I found out that Geraldo Rivera is a fake name. (I guess I remember hearing that years ago.)
But it was news to me that "Wolf Blitzer" is also a an alias. (Real name is "Norman Finkelstein"... or something like that)
There is conflicting information on both of those that indicate that those "birth names" might be urban legends. (And I'm the one who "found" the Blitzer one...)