void process_information(s_information* info) {
    if (info) {
        if (info.is_classified)
            process_secretly(info)
        else
            process_publicly(info)
    }
}

Can I have my millions now for "the expensive software needed to handle classified and declassified data simultaneously"?

I second the comments regarding Melbourne's inner north -- I'm currently living in North Melbourne, which is pretty similar to Carlton, and it's mostly a really nice area to live in. Funnily enough, I lived in Croydon before I moved. Apart from the distance to the city proper, Croydon is my idea of a great place to live. I'll take the travel time into the city, in return for the large properties and leafy streets (although developers are doing their best to turn everything into housing estates).