Cost-Effectiveness of Homeland Security Expenditures

There is a good series going on this week at www.slate.com regarding the cost-effectiveness of homeland security measures since 9/11.  I realize that this is a bit off the stated topic of this blog, but is a good read and a reminder that reason should be a strong counterweight to emotion in public policy-making.  The best line from today's article:  "Overall, by far the most cost-effective counterterrorism measure is to refrain from overreacting."  Which is also sound policy since the goal of terrorism is to induce the fear that causes overreaction.