“Two young children with severe burns, accompanied by a single parent each, fled by car from different regions of war-ravaged Ukraine toward the Polish border. From Poland, away from Russian bombs, they boarded a flight that is at least 10 hours long no matter if they flew from border cities like Lublin or Rzeszow or from the capital Warsaw, and landed sometime around midnight — late Wednesday or early Thursday — to be treated by burn specialists at Boston’s…”