Added option in Back Office>Settings>General to enable Super User to view full SSN in the People Manager>People>Edit Employee Fields page.

To enable display of full SSN turn the Display full SSN for Super User only AT YOUR OWN RISK. setting to YES and save options.

*** ATTENTION *** It is strongly suggested that this option NOT be enabled (YES) as it poses a security risk to your employees.
In addition, you should limit the number of users with the Super User role since Super Users have the ability to turn this option on/off.