The photographer of that second image appears to be
Joe McNally, who writes in his blog about how a few years ago he was working for Life magazine and was assigned the task of tracking her down and getting a current picture of her.
She was an anti US propaganda pawn of communist Vietnam. Was eventually allowed to move to Cuba, where she met her Vietnamese husband. They flew from Cuba to Moscow for their honeymoon, and when their plane stopped over in Canada, they defected. They have lived in Canada since.