Explain the five main components of operational security (OPSEC)

For this essay, you will explain the five main components of operational security (OPSEC), and you will discuss how OPSEC, personal security (PERSEC), situational awareness, and the OODA (observe, orient, decide, and act) loop relate to potential scene safety concerns before a terrorist event occurs, after it has occurred, and while it is still ongoing.  The OPSEC process involves five steps: (1) identification of critical information, (2) analysis of threats, (3) analysis of vulnerabilities, (4)assessment of risk, and (5) application of appropriate countermeasures

Your paper should be Three (3) pages in length, and all sources used should be cited and referenced using APA formatting. At least two sources should be utilized for this essay. Information about accessing the Grading Rubric for this assignment is provided below.