No hooters restaurant
No nudie bars
no playboy magazines
all the women look like self propelled tents
the women don't shave ANYTHING
Their idea of a bath is to go out in the rain (and we know how often it rains there)
Truthfully
Religious fervor. The same reason the Kamikaze would during WWII, the same reason the Texicans and Tenneseeans fought to the death at the Alamo (don't tell me it wasn't a suicide mission) The same reason we have a Medal of Honor.
When you care more for you family, community, culture or nation than you do for yourself or you can convince yourself that it is logical to do so for the greater good to an extent that it matters more to you than your own life, then you too could become a suicide bomber. How many times have we heard of troops jumping on hand grenades to save their comrades? How many times have we heard of suicide missions? Wouldn't you give your life for your family? It is the same thing except that it is not in a defensive mode, it is in an attack mode. Destroy the enemy before he has a chance of destroying that which matters most to me. The problem is that the Mullas have convinced too many that we are the enemy by twisting the words of the Koran.
Before you go blaming Islam itself, remember that it is based on Judaeism. Also, look at things like the branch Davidians of Waco and Jim Jones in Guyana. There are examples of this in all religions.