I'm not entirely sure my thoughts on this yet, so I thought I'd see what others thought.
Article
The facts of the case involve an American citizen, computer programmer, and comic book enthusiast in his mid-twenties who was flying from his home in the United States to Canada to visit a friend. Upon arrival at Canadian Customs a customs officer conducted a search of the American and his personal belongings, including his laptop, iPad, and iPhone. The customs officer discovered manga on the laptop and considered it to be child pornography.
The images at issue are all comics in the manga style. No photographic evidence of criminal behavior is at issue. Nevertheless, a warrant was issued and the laptop was turned over to police. Consequently, the American has been charged with both the possession of child pornography as well as its importation into Canada. As a result, if convicted at trial, the American faces a minimum of one year in prison. This case could have far reaching implications for comic books and manga in North America.
Typical manga style is very childlike looking characters, large eyes etc like this
There are (as far as I am aware) types of manga which are sexual, but for the most part I don't believe they are.
I have to confess not knowing a great deal about manga, but what I do know makes this seem like a real overreaction.