On March 1, 2003, the Department of Homeland Security took its charge to protect the American people. In the years since, the threat landscape has expanded and evolved across cyberspace, critical infrastructure, biological threats, and more as a dedicated team of security professionals across various agencies and disciplines confronts new threat actors, worsening natural disasters, immigration challenges, global instability, threats to election security, drug and human trafficking, and more. Homeland Security Today asked Homeland Security leaders, including Guidehouse Partner and Former Deputy Administrator of the Transportation Security Administration, Patricia Cogswell, to share their thoughts on security challenges in the year ahead.