The third series of television show 24 started in the US last week. In the aim to improve security, The Counter Terrorist Unit seem to have switched operating system from MacOS to KDE. Interestingly they used a 3-year-old KDE 1.x desktop. These older icons are made available under a public domain licence. If a GPL'd set of icons had been used, would we now be legally able to modify, sell and distribute the episode under the terms of the GPL over the internet?