I probably sound like a broken record by now, but SCADA security is not going anywhere. This applies to almost anything electronic that is connected to a network.
Due to the nature of the systems, and the fact that they most often can't be easily patched, it's becoming increasingly important to choose standards based products/technology and protect your network infastructure. It's imperative to mitigate risk where you can!
In recent news - military arming for cyber warfare. This blog post commenting on hacking infastructure.