Good points all round, X-Istence is suggesting defense in depth, and you (vog) suggest making sure the outer perimeter is secure. Both good ideas - even if you

Good points all round, X-Istence is suggesting defense in depth, and you (vog) suggest making sure the outer perimeter is secure. Both good ideas - even if you fill the hall with barbed wire, you should make sure to lock the front door. Beyond that, it's a trade off.