Cheers Bozza. Yes, that certainly makes more sense although I believe Lufthansa don't operate that policy either, so on their flights the pilot/copilot would be alone.
I believe most suspected pilot suicide incidents have been motivated by personal issues rather than religious/terrorist ones. We'll have to wait and see here.
On the issue of protecting from pilots taking control like this, I read most airlines require two pilots at one time in the cockpit, so...