In the last 20 years, it seems that computers have taken over. They're in our homes, they're in our hands... darn it, they're soon going to be in our heads, for sure!
This phrase means one must be careful when appointing a guardian, and make sure someone is watching them as well. Quem vigia os vigilantes? O que os vigilantes vigiam? Até que os vigilantes venham Vigilantes odeiam outros vigilantes Escolha a tradução mais próxima da frase latina acima.