The human frontier can only be that which has no frontiers, and the boundaries of science ought not to be confused with the boundaries of our existence. That would be to misunderstand both science and humankind.
It is important to affirm that the Pope is not a political figure. We cannot separate the various spheres of human life, but he is not a world leader. He is the spiritual head of the Catholic Church. He has a responsibility to Catholics, and to all people. He speaks for the welfare of all. This is the point of view I always try to comes from, especially in my political writings you will find here.