I totally hate this law even for real photos. Looking at or having information should never be illegal. Producing real photos should be illegal. And as somebody pointed out, since it is illegal to look at the images it is impossible to tell people what is illegal and what is not illegal. Just take this case were a lower court thought some images were illegal and a higher court disagreed. How could normal people then know when they are breaking the law?
As I understand US also have laws concering drawn images:
http://www.msnbc.msn.com/id/28319199...me_and_courts/