And what if a rocket propelled grenade is fired into a cockpit of one of the aircraft in Iraq or Afghanistan- what do you suggest we fit then - 10 inch armour over all of the cockpit windows - it isn't a perfect world as I have said and yes there can be lucky shots.
There is not enough money and this will never change as the military is not as sexy to voters as the NHS or education.
Nige/Chappie -perhaps you should give more time to considering why exactly the crew were at low-level and stop blaming the lack of foam as the key contributor to the accident.