A more thorough explanation:

The Office of Private Sector Liaison is a department within the U.S. Department of Homeland Security. Its main responsibility is to work with businesses and organizations outside of the government to ensure security measures are in place.

For example, the Office of Private Sector Liaison may work with a trade association representing a group of businesses to provide guidance on how to protect their facilities from potential threats. They may also collaborate with a non-governmental organization to develop emergency response plans in case of a crisis.

The goal of the Office of Private Sector Liaison is to foster a strong partnership between the government and the private sector to enhance security and protect the nation from potential threats.