XACML - Does a policy actually require a rule?

Yup, you need a Rule to actually say whether you want to Permit or Deny access.

From a schema validation perspective, you could have a policy with no rules, but as Craig points it out, the rule is what carries the decision. So a rule-less policy is pointless.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.