Biden's parting shot: US approves long-range missiles for Ukraine

Major escalation or mere parting shot? Nine weeks before Joe Biden hands the reins back to his precedessor, the US president approving Ukraine’s use of American-made long-range missiles inside Russian territory. The move is in response to Moscow’s deployment of North Korean troops to the frontline in Kursk region. Are the missiles only for that border region? What happens after Inauguration Day in the US on January 20th?