The Broadcaster shall not be liable (directly or indirectly) for any damages, losses, costs or expenses suffered by the Client as a result of substitution, interruption, postponement or inability or omission to broadcast any advertising by reason of (a) technical or mechanical difficulties, public emergency or necessity, legal restriction, strike or labor action, terrorism, (b) failure of any third party transmission, (c) regulations, directions, orders, or other requirements of any federal, provincial, municipal authority or any applicable regulatory bodies, including the Radio-television and Telecommunications.