You are evidently unaware of the famous quote, by Zawahiri as I remember, that goes like this:
"You in the west love life; we crave death"
The Quran cites the highest achievement for a Muslim is to die in jihad against the infidels.
As far as time to brainwash terrorists: thousands of Madrassas (Islamic schools) are doing that day in day out throughout the middle east and have been doing it for years. Most of what they teach is rote recitation of the Quran!
And before you vote, it might be well to remember that Obama attended a Madrassas in Indonesia until he was 10 reciting the Quran!
Attackers did not know they were to die
"..FBI investigators have officially concluded that 11 of the 19 terrorists who hijacked the aircraft on 11 September did not know they were on a suicide mission, Whitehall intelligence sources said last night.
Unlike the eight 'lead' attackers, who were all trained pilots, they did not leave messages for friends and family indicating they knew their lives were over..."
They can get some to do suicide missions but it is not that easy or we would have a lot more of them and more casualties. The Koran and the various pronouncements of terrorists notwithstanding, it is not that easy.