"It seems manifest that, ideally, the decision to terminate a pregnancy should be one concurred in by both the wife and her husband. No marriage my be viewed as harmonious or successful if the marriage partners are fundamentally divided on so important and vital an issue. But it is difficult to believe that the goal of fostering mutuality and trust in a marriage, and of strengthening the marital relationship and the marriage institution, will be achieved by giving the husband a veto power exercisable for any reason whatsoever or for no reason at all. Even if the State had the ability to delegate to the husband a power it itself could not exercise, it is not at all likely that such action would further, as the District Court majority phrased it, the "interest of the state in protecting the mutuality of decisions vital to the marriage relationship." 392 F. Supp. at 1370. We recognize, of course, that, when a woman, with the approval of her physician but without the approval of her husband, decides to terminate her pregnancy, it could be said that she is acting unilaterally. The obvious fact is that, when the wife and the husband disagree on this decision, the view of only one of the two marriage partners can prevail. Inasmuch as it is the woman who physically bears the child and who is the more directly and immediately affected by the pregnancy, as between the two, the balance weighs in her favor. Cf. Roe v Wade, 410 U.S. at 410 U. S. 153. We conclude that § 3(3) of the Missouri Act is inconsistent with the standards enunciated in Roe v. Wade, 410 U.S. at 410 U. S. 164-165, and is unconstitutional. It is therefore unnecessary for us to consider the appellants' additional challenges to § 3(3) based on vagueness and overbreadth."