A defensive system can remain useful even when an attacker can sometimes evade it. The panel criticizes complete effectiveness as a procurement condition because it can become a reason to reject every available option. The comparison with electricity generation argues for a mixture of systems whose different strengths support security. Iron Dome supplies a more specific example: its defended areas are selected around critical targets, so an interception system can deliberately leave other areas uncovered. Assessing that system requires understanding what it is intended to protect.
Notable Point · 1:28:29-1:30:10
Why imperfect defences still belong in a layered system
The discussion separates useful defensive coverage from an impossible promise of perfect interception.