Which of the following is NOT a responsibility of the Department of Homeland Security (DHS)?

The responsibility of managing economic stability is typically outside the scope of the Department of Homeland Security (DHS) and falls more under the purview of other governmental departments, such as the Department of the Treasury or the Federal Reserve. DHS focuses on protecting the nation against threats and ensuring preparedness for disasters, which includes preventing terrorist attacks and coordinating the federal response to disasters.

Ensuring civil liberties is also a critical responsibility of DHS, as it involves balancing national security measures with the rights and freedoms of individuals. Therefore, while economic stability is undeniably important for overall national security, it is not a direct responsibility of DHS.