The German airline Lufthansa has been hit by another 24 hour strike.<br /><br />It's the latest in a series of walkouts over retirement benefits.<br /><br />A German court has refused to declare the strikes illegal even though the transport minister says they're killing the economy. <br /><br />Al Jazeera's Simon McGregor-Wood reports from Frankfurt.<br /><br />Subscribe to our channel http://bit.ly/AJSubscribe Follow us on Twitter https://twitter.com/AJEnglish <br />Find us on Facebook https://www.facebook.com/aljazeera <br />Check our website: http://www.aljazeera.com/
