Why is border security considered critical in national security?

Border security is considered critical in national security primarily because it acts as a barrier against potential threats, including violent extremists who might exploit vulnerabilities in border controls to enter a nation. This concern stems from the need to prevent terrorist organizations and other hostile entities from crossing into the country where they could plan and execute attacks or engage in criminal activities.

Maintaining robust border security not only helps to identify and intercept individuals with malicious intentions but also protects a nation from the exploitation of legal entry channels. An effective border security policy supports intelligence efforts to detect and disrupt networks that facilitate illegal entry, ensuring that only individuals who meet security vetting standards are allowed entry.

While concerns regarding invasions and undocumented individuals are valid, the primary focus of border security in the context of national security is the prevention of entry by those who may pose a direct threat to the safety and stability of the country.