What is one of the core missions of the Department of Homeland Security?

One of the core missions of the Department of Homeland Security (DHS) is to enhance national cybersecurity. This focus stems from the need to protect the nation’s critical infrastructure and information systems from cyber threats and attacks. Given the increasing reliance on technology and the internet for government, business, and personal activities, ensuring the security of cyber networks is vital for maintaining the nation's safety and functionality. The DHS works to develop strategies, policies, and programs that improve the security posture of both public and private sectors against cyber threats, thereby safeguarding national interests.

While promoting international trade, regulating immigration policies, and providing foreign intelligence are important functions of various government agencies, they do not specifically fall under the core missions of the DHS. The agency is specifically tasked with addressing the evolving landscape of threats and vulnerabilities within the realm of cybersecurity, thus highlighting its critical role in protecting the nation's digital environment.