FC6 system-config-securitylevel port 631 accept

[Tim Alberts]

Why does the security program always leave UDP/TCP port 631 at accept?  
I know the port is typically used for printing (CUPS).  But why is it 
left open?  It seems it should be put behind the firewall, then if 
someone wants to, they can open it up.

Specifically referring to Fedora6 install and the 
system-config-securitylevel and the gui app that works with it.

Can I assume the logic is that this is a simple user interface so 
individual users on a home network can enable the firewall and still 
share printers by default?