LessThanSte,
Sounds like you're over-stating the case regarding Mode S. It simplifies data that's being caught on radar. Instead of receiving sometimes garbled data from a group of aircraft it enables controllers to deal with aircraft on a one-on-one basis, giving them clearer and more precise information to work with.
Please correct me if I'm wrong anybody, but that's the simplest way of explaining it from my point of view
