Private Sector and Corporate Security

In a free and open economy, how does the Department of Homeland Security ensure our critical infrastructure is protected, especially when it is owned or operated by a private entity? For example, your post could deal with private airlines, airports, and port authorities; private power stations, dams, and electrical companies; transportation systems, cargo movement, and ports; or the Internet and the cyber world. What are the special considerations that must be taken into account? Write your post from the perspective of the Department of Homeland Security.

Your initial post should be at least 250 words in length. Support your claims with examples from required material(s) and/or other scholarly resources. Use APA format to cite your sources in text as well as at the end of your post in the list of references.