You should worry about your digital privacy, even though you “have nothing hide”. It’s all about freedom. Freedom of thought and expression, freedom to communicate in private and to store private information securely. The events of recent years have shown to what lengths governments are willing to go to covertly get their hands on as much information as possible, beyond any law and constitution. Thank you Edward Snowden, for your true courage and for shedding light on the draconian surveillance regime our world is spiralling into.
Also, a thank you to the Court of Justice of the European Union for declaring the Data Retention Directive to be invalid and in conflict with fundamental rights to privacy:
It entails a wide-ranging and particularly serious interference with the fundamental rights to respect for private life and to the protection of personal data, without that interference being limited to what is strictly necessary.
Some topics I find interesting are: censorship, illegal or immoral surveillance of people through digital technology, invasion of privacy, network neutrality, general ethics, libre software and open standards, interoperability concerns, hostile copyright legislation, source code patenting issues and Digital Restriction Management (DRM) technologies. Raising public awareness about issues such as these is important.