The European video games sector is dynamic, with expected revenue of € 7.3 billion by the end of 2008. However, public concerns that video games can cause aggressive behaviour, heightened by school shootings such as in Helsinki (Finland, November 2007), have led several national authorities to ban or block video games such as "Manhunt 2". In response, the European Commission has surveyed existing measures protecting minors from harmful video games across the 27 EU Member States. 20 EU Member States now apply PEGI (Pan European Games Information), an age-rating system developed by industry, with EU support, since 2003. In the Commission's view, industry must invest more to strengthen and in particular to regularly update the PEGI system so that it becomes a truly effective pan-European tool. Also, industry and public authorities should step up cooperation to make classification and age rating systems better known and to avoid confusion caused by parallel systems. A Code of Conduct for retailers should be drawn up within two years on sales of video games to minors.