Protected scope

        switch (receipt.data[0]) {
        case DATA_LEADER:
            RemoteHost::Transmission& result = mediator->processFrame(receipt);
            if (&result != NULL)
                connection << result;
            return;
            break;
        case ACK_LEADER:
            mediator->processACK(receipt);
            break;
        case NACK_LEADER:
            mediator->processNACK(receipt);
            break;
        }