Privacy is important to us all. You don't want your neighbor taking pictures of you in your own shower, nor do you want the guy down the street listening in on your phone conversations. However in the current age of terrorism hysteria the government and non-governmental organizations are invading our private lives more and more. If people aren't reminded about their rights then they may start to believe that they have no right to have a private life.
Instead of walking around being a free advertisement for some monolithic corporation, try one of our shirts. You can influence the thoughts of others without even opening your mouth. Most people will see the shirt and think "of course it isn't" but then when they see the latest news report about privacy being eroded they'll think back -- "hey, privacy isn't a crime". People may even stop you on the street and ask about the shirt. You can say that privacy is a right everyone should have, that we have to stay aware that big companies and governments are constantly trying to spy on us.