Using gnome-screensaver-2.20.0-11.fc9.x86_64

The lock dialog has a strange button to the right of the password entry field. 
Can't manage to take a screenshot, so I'll draw an ascii image:

Password or swipe finger:
[___________________________][us+inet]
             [  Cancel  ] [  Unlock  ]


If I click on the us+inet button, the button label changes to a single question
mark.  If I click it again, it toggles back to us+inet.

Not sure what this button is or why it's there.  It needs to get killed or have
an explanation (tooltip?) as to it's existence.