Dublin Airport computers have filters installed.  So this story from RTÉ News on the much-discussed constitutional issues with statutory rape laws:

http://www.rte.ie/news/2006/0629/sex.html

is blocked with the following message:

Access Restricted
User Profile:

Reason: The website’s address contains a restricted CyberPATTERN.
Category: Adult/Sexually Explicit
To change any of the filter settings please speak to your CyberPatrol Headquarters’ Administrator.

Gee, thanks.