Tucker Carlson names 4 countries that could use nuclear bomb if US launches nuclear attack on Iran

Commentator Tucker Carlson has named four countries that could use nuclear bomb if US launches a nuclear attack on Iran. Stating that US' attack "would set a new precedent", Carlson said, "Russians...already...[said] that an American nuclear strike...would free them to use nuclear weapons against Ukraine. Pakistan and India would be tempted to do the same...as would North Korea against Seoul."