Menachem Mendel Schneerson, the Lubavitcher Rebbe, published and spoke about the Seven Laws of Noah many times. According to Schneerson's view, based on a detailed reading of Maimonides' "Hilkhot M'lakhim", the Talmud, and the Hebrew Bible, the seven laws originally given to Noah were given yet again, through Moses at Sinai, and it's exclusively through the giving of the Torah that the seven laws derive their current force. What has changed with the giving of the Torah is that now, it is the duty of the Jewish people to bring the rest of the world to fulfill the Seven Laws of Noah.