http://www.wolverinefiles.com/009-world-war-ii/
In this link, it says, "Logan is unquestionably involved in whole-scale slaughter of civilians and human experimentation (...) while some have suggested that Logan was under the influence of Romulus, Logan states that he is the only person still alive with knowledge of this project ('Now I’m the only one who does [know].'). And the fact that he takes his son to the caves to hide him from Romulus demonstrates that Romulus was unaware of this project and was not involved in brainwashing Logan to be a part of it."
I have also heard claims that Wolverine killed children and I have read comics where he personally tortured people.
I used to love Wolverine, but now I'm concerned, isn't it kind of unethical to read a comic that portrays Wolverine as a "hero" of sorts when he's done things like that? Also, was he really being manipulated by Romulus with the human experimentation incident?