Norway’s $1.8 trillion sovereign wealth fund should be permitted to invest in defense stocks, reversing a policy of avoiding weapons makers on ethical grounds, the head of the country’s central bank said on Thursday.

He's the CEO of Norway's sovereign wealth fund, a financial juggernaut that is worth nearly $2 trillion. It is the largest of its kind in the world and as you might imagine, investor's ears perk up whenever he speaks.

Policymakers in Norway should be open to the idea that the country's $1.8 trillion wealth fund be allowed to invest in weapons makers that are currently banned from its portfolio on ethical grounds, the central bank chief said on Thursday.