While Taliban fighters had an initial claim to protection under the conventions they lost POW status by failing to obey the standards of conduct for legal combatants: wearing uniforms a responsible command structure and obeying the laws of war.
The wise man does not expose himself needlessly to danger since there are few things for which he cares sufficiently but he is willing in great crises to give even his life - knowing that under certain conditions it is not worthwhile to live.
