don't see why it matters that they are doctors
i think the "they are all disaffected yoof" line is a rather comfortable myth. How do you think they are funded? This is a multi-million pound enterprise.
The only reason for them to be young, really, is that it'd be much harder to go and blow yourself up if you have a family, responsibilties etc, and of course, young men are rather gung ho and like to cause a macho stir. But they are just the frontsmen, they are not going to be the brains behind it all.
these people aren't there because of some ultra religious motive, not REALLY. That might be their individual motivation, but its not whats putting them there. They are blowing people up because of complex political forces, not least the tendancy of the west to bomb and fund the bombing of majority-Islam countries, the day to day Islamophobia experienced by many in Western countries. (but of course, WE are not terrorists, WE are justified ). THAT is what is attracting people to anti-Western, fundementalist Islam.
Its NOT as simple as being a case of a few angry youths wanting to take a pop at society, and until we realise THAT and act appropriately, and enter into a dialogue, we will not solve the problem. If the fact that they are doctors helps people realise that there are a lot of intelligent people with thought out arguements involved in this, then good, we might get somewhere.