I can link procedural fairness with security and the question that Don asked just a minute ago. Procedural fairness requires that the criteria that an applicant must meet be made explicit and clear, and that the applicant have a chance to answer or refute any concerns the visa officer has. That could be done through documents, but it's more thorough with an interview.
The process we have now violates procedural fairness, and at the same time it doesn't accomplish our security or other screening goals, because the applications get only a cursory look-through. To satisfy both procedural fairness and our security and other concerns, Mr. Collacott's suggestion that everyone be interviewed is an excellent one. Unfortunately, the resource implications are huge, so some decision needs to be made on that point.