Which of the following is not considered a right protected by the Constitution?

The right to move internationally is not explicitly mentioned or protected by the U.S. Constitution in the same way as the other rights listed. The rights to freedom of assembly, free speech, and privacy are firmly grounded in constitutional protections.

The First Amendment protects freedom of assembly and free speech, guaranteeing individuals the ability to gather peacefully and express their thoughts and opinions without government interference. The right to privacy, while not explicitly stated in the Constitution, has been recognized through various Supreme Court rulings as being implied by various amendments, including the Fourth Amendment's protections against unreasonable searches and seizures.

In contrast, the Constitution does not guarantee the specific right to move internationally. While citizens may possess some level of freedom to travel, this right does not have the same robust legal backing as the other rights mentioned. Therefore, it is correct to identify the right to move internationally as not being explicitly protected by the Constitution.