The Minute Physics video made me worry more about Russia's & US' ability to cause a nuclear winter rather than worry about NK. Yes, there's additional risk if

The Minute Physics video made me worry more about Russia's & US' ability to cause a nuclear winter rather than worry about NK. Yes, there's additional risk if another country has them, but that argument is independent from country. Arguing NK shouldn't have nukes because it increases a risk is equally applicable to the US. Actually, the US pose a much greater risk because they have bombers, silos and subs with way more nuclear weapons, multiplying the risk for accidents. Following the risk argument I feel the US are a larger problem than NK.