deep links illegal?

after the Australians now the Texans:

Deep linking (placing a direct link on a website to a page on another website, not to its main page – for example to http://blueeyedcreature.net/blog ) is – according to them – illegal.
http://www.heise.de/newsticker/meldung/84207
http://en.wikipedia.org/wiki/Deep_linking

Do these lawyers actually know how the internet works? Hyperlinks? Hello?

Some people are just born stupid and never learn, I fear…