Are suicide bombers stupid?

Here are the Five Laws of Stupidity according to Carlo Cipolla:

1 – Always and inevitably everyone underestimates the number of stupid individuals in circulation.
2 – The probability that a certain person be stupid is independent of any other characteristic of that person.
3 – A stupid person is a person who causes losses to another person or to a group of persons while himself deriving no gain and even possibly incurring losses.
4 – Non-stupid people always underestimate the damaging power of stupid individuals. In particular non-stupid people constantly forget that at all times and places and under any circumstances to deal and/or associate with stupid people always turns out to be a costly mistake.
5 – A stupid person is the most dangerous type of person.

Types of Human Actions
Hapless: Someone whose actions tend to generate self-damage, but also to create advantage for someone else.
Intelligent: Someone whose actions tend to generate self-advantage, as well as advantage for others.
Bandit: Someone whose actions tend to generate self-advantage while causing damage to others.
Stupid: A stupid person causes losses to another person or to a group of persons while himself deriving no gain and even possibly incurring losses.