On other threads, there is discussion of wiping out the families of terrorists.
I fail to see how you could deincentivize a suicide bomber other than by making the entire family a suicide bomber, by killing mom, pop, sis, bro, son, daughter, grandma, grandpa, aunt, uncle, cuz, etc.
My guess is the family may not be as enthusiastic about little Al-Johnny becoming a cruise missile, if they knew that within the month, they would have their tongues hanging out of the middle of their necks. If the families and community did not encourage this behavior, my guess is that it would wane in a very noticable manner.
It would also save innocent lives, although "innocent" would have to die to make it so.
No one in politics has the stones to see it through.