It is surprising that the laws of Norway ever permitted the investment in a criminal enterprise which is what the the wall is under international law. All nations should explore both public and private investment in enterprises that participate in illegal activities under there own statutes and those international laws that they are a party to. The law is not just for drug pushers. This is basic. No country should allow participation in that which it deems illegal or is obligated by treaty to deem illegal. How much more fundamental can you get? To do otherwise is to be criminal by definition.
Palestinians call general strike in J'lem Old City over police conduct, settler violence (Haaretz)
from the article: Israel summons Norway envoy to protest divestment from arms firm