Data retention is no solution
One year after Germany decided not to have a national law on data retention, the European Union moves towards data retention legislation.
Apparently now the European Commission and the European Council are both competing with proposals for a directive on mandatory data retention of all telecommunication meta-data for up to three years. Meta-data includes MAC addresses, IP addresses, Email addresses, phone numbers, IMEI numbers, location of the base station from which a mobile system initiated the call, and many more (it's a two page listing!).
If you are a EU citizen and think that data retention is invasive, disproportionate and violates the European Constitution on Human Rights, please sign this petition at dataretentionisnosolution.com.