The US Justice Department has decided that file-sharing isn't just a copyright problem, it's also an issue of National Security:
Our economy is so based on intellectual property ideas that, unless we can protect them, we're really looking at a situation where it's going to hurt our ability to survive as a country.
Secondly, so much of what we do now involves computers, whether it be with software or other types of communication lines. Often, intellectual property is a key component to the things we do to protect ourselves as a country.
(Thanks, Alex!)
