If you watch NFL football, you know the quarterback often comes to the line of scrimmage and changes the play.  it's called an audible, and it usually involves some sort of "barked out" signal.

Microsoft co-founder Paul Allen died Monday at the age of 65, according to a statement by his company, Vulcan Inc., on behalf of the family. Earlier this month, Allen announced that he was again suffering from non-Hodgkin's lymphoma.