Well the article does really only focus on terrorism. Safer or saferty can be a rather broad term.

In the sense of cost effectiveness, anti-terrorisme ranks rather low in the dollar/QALY (Quality-Adjusted Life Years) ratio. Spend the same money on one of the top 10 death causes and you are pretty much garanteed a much better return in QULY's per dollar.

The perception of the terrorisme danger is way too high compared to the actual amount of death and damage terrorisme is causing.