of the workers of the 70% state owned Gaz de France and Électricité de France went on strike on 13 November, reducing the national electricity production by 8000 MW (roughly 10%). There were no fears of power outages. The Opéra National de Paris, a group subject to the special retirement plan (régimes spéciaux de retraite), also cancelled performances. However in a short interview granted to the BBC the director claimed these cancellations were due to insufficient customers because of travel difficulties incurred by the strikes. In addition, some university students demonstrated and blocked the entrances to their campuses in opposition to plans to allow private funding of Universities. In the University of Nanterre students were forcefully removed by riot police, however this was censored on the national news. On 13 November the newspaper Le Figaro (which is owned by Sarkozy supporter Serge Dassault) and the cable news channel LCI reported that a survey found that about 7 out of 10 people said the strikes were unjustified. Conclusion of the strikes Minister of Employment, Social Cohesion and Housing Xavier Bertrand, whose portfolio includes labor relations, held several negotiating sessions with the unions throughout the day on 13 and 14 November. Bertrand told the unions that pension reform was non-negotiable, but proposed a month-long period of negotiations between the unions and each state-controlled agency to discuss ways to minimize the effects on existing workers. Some improvements in mass transit also occurred on 14 November. The main Métro commuter lines remained shut, while other lines ran between 20 and 50 percent of normal capacity. However, only a third of Paris buses were running. The Associated Press reported that 150 of the 700 high-speed TGV trains were running, an increase of 60 over the day before. On 18 November, a demonstration was held by pro-reform and anti-strike organizations in Paris. They gathered between 8,000 and 20,000 protesters against public transportation strikers, calling them "hostage takers". 20 November marked the 7th day of striking and strikers were joined by other civil servants including teachers, postal workers and newspaper printers. The printers were also protesting against reorganisations within the printing industry. Air traffic control employees were also on strike, causing delays of 45 minutes on flights from the Parisian airports according to ADP. During the night from 20 November to 21 November, the TGV network was sabotaged by fires, further adding to the delays. Approximately 30