I recently came across a hard-copy of an email I sent to a colleague sometime back in 2004 while I was an ASME Federal Fellow to the Department of Homeland Security. If my memory serves me correctly, I sent this email in January 2004, or about midway through my tenure in DHS’s Information Analysis and Infrastructure Protection (IAIP) directorate. Basically, the question was not how to estimate the psychological impact associated with a terrorist attack, but rather what psychological impact means. After all, definitions precede measurement. As a reminder, this note was written over 4 years ago when I was less enlightened, or rather, just 6 months after leaving my job as an aerospace structural engineer focused solely on designing the structural subsystems for scientific, non-defense-related spacecraft. Nonetheless, I felt that posting it here might inspire similar thoughts entertained by others or perhaps even prompt discussion.
A recent lecture in my Political Analysis course [PUAF 620 at the University of Maryland] inspired me to think about “psychological impact” as a form of consequences. The lecture was on special interest groups, their causes, and the consequences of their existence. One theory is that special interest groups are created to protect and preserve the rights of its constituency (either natural rights or rights/benefits bestowed on the group from previous legislation). A special interest group will form (or mobilize) to protect its interests if it feels its rights are being threatened.
Based on what I learned during this lecture, I propose the following definition for psychological impact: “psychological impact is the degree to which an individual or group of individuals perceive they have been deprived of their rights.”
Let’s think about this – if several department stores scattered across the nation are targeted for a coordinated attack [a very common scenario that has provided the basis for numerous thought experiments], following an attack people will feel that their freedom to shop a department stores has been taken away from them. Similarly, in the wake of September 11, many Americans felt deprived of their freedom to travel by air. One can come up with a host of other examples.
It is also interesting to consider the collateral economic impacts. Perhaps coordinated attacks on several department stores will prevent people from shopping anywhere such stores are located. One might argue that the downstream impact of this behavior could propagate throughout the entire retail industry. On the flip side, the inability (and unwillingness) to travel by air following 9/11 attacks did not impact the entire transportation industry. Rather, people who would otherwise fly opted to travel by trains and automobiles.
So how does one assess psychological impact? For any attack scenario, one must identify how a successful attack might threaten perceived rights and freedoms. To do this, we must first understand what rights the public thinks it has. In the two examples above, the focus was on either freedom to shop and freedom to travel. To prioritize scenarios based on potential psychological impact, we must order all these freedoms according to their perceived importance to the affected public. This can be done at the national, regional, state, local, sector, etc. level. Doing so will facilitate cost-benefit tradeoffs (in the descriptive sense). Proposed countermeasures must demonstrate a tradeoff between the freedoms such policies protect versus the rights they appear to take away. In the case of the Patriot Act, freedom to live without terrorism is enhanced in exchange for a weakened right to privacy [was there a positive ROI here?].
It would also be interesting to explore how the economy might respond to any perceived loss of freedom. For example, a perceived loss of freedom to shop will keep people from spending money. [how does percieved deprivations of freedom correspond to economic impact?]
Now that I had four years to sit on this, I still think that the proposed definition for psychological impact has merit despite the fact that it essentially equates psychology to perceptions, and does not consider such things as PTSD. But before I or anyone else accepts this definition, more thought is needed on whether it is complete and all encompassing, whether it precisely articulates what we care about, to what degree such a measure is redundant with respect to other measures of loss (economic impact is a function of societal behaviors), and how such impact can be assessed with confidence. Even now, 5 years after DHS opened its doors, I am sure any answer to the question of measuring psychological impact would be of interest to DHS risk analysts.
I can finally throw the hard-copy of this email out now that it is posted to my blog. Just another step toward a purely paperless life…