Final answer:
Justice Louis D. Brandeis's dissent in the case of Olmstead v. United States reflected his strong defense of privacy and free speech, principles later echoed in significant Supreme Court cases like Griswold v. Connecticut.
Step-by-step explanation:
Justice Louis D. Brandeis, renowned for his defense of the right to privacy and freedom of speech, dissented in the case of Olmstead v. United States. A central point of Brandeis's dissent was his forward-thinking advocacy for the protection of individual rights against government intrusion, emphasizing principles that would later be foundational in landmark cases such as Griswold v. Connecticut and Eisenstadt v. Baird. Renowned as a 'militant crusader for social justice', Brandeis's stance in his Olmstead dissent has garnered respect and agreement from many who value civil liberties and the ongoing relevance of judicial protection for privacy rights.