Glenn Beck was heavily criticized for saying that the Norwegian youth camp (the one targeted by the Norway shooter) resembled a "Hitler Youth Camp." Beck may have been a bit too strong in drawing such a parallel, but he was partially right. The purpose of the camp was to indoctrinate young people into leftist doctrines. On the day before the shootings, the youth on the island displayed a large banner saying "Boikott Israel."
The leftist bent of the camp may be why the shooter selected it as a target.
Bare Naked Islam has the story: Glenn Beck is Right!