The document discusses the possibility of common security criteria in the European Union. It acknowledges that national security is the responsibility of each member state, but identifies some areas where common criteria could be developed, including: 1) Ensuring the security and integrity of the EU as a whole. 2) Improving cooperation between member states on civil protection from natural and man-made disasters. 3) Taking a comprehensive approach to security issues that affect the EU and its neighborhood. One specific example discussed is developing common criteria for classifying critical infrastructure that would be essential to maintain societal functions across multiple EU countries. However, the document also notes some limits to developing fully comprehensive common security policies.