Whitehouse.gov phone home?

It's really weird... I usually stay logged into my XP account for as long as the computer is on. For some reason I logged off and logged back on... and viola got this little notice:

Notice, like the others I've taken my IP address out (Local Address)... but this really confuses me.

Why does my computer need to access Whitehouse.gov. And! Why does Windows Explorer try to do it? The only instance of Windows Explorer I've got running is the one that Windows XP starts on default for the desktop and the rest.

Seems odd huh....

Good thing I've got Sygate Personal Firewall installed, that way I can just click "No" and my computer doesn't contact whitehouse.gov!