Yes, and what it says is this:
>The Supreme Court has decided that there is a reduced expectation of privacy at the border, holding that the government’s interest in monitoring and controlling entrants outweighs the privacy interest of the individual. Thus, routine searches without a warrant, probable cause, or reasonable suspicion are considered inherently reasonable and automatically justified in that particular context.32 Fourth Amendment rights are therefore significantly circumscribed at the border, and CBP is given an expansive authority to randomly—and without suspicion—search, seize, and detain individuals and property at border crossings that law enforcement officers would not have in other circumstances.
The constitution free, means that constitutional rights are reduced within the area.