I'm a technical specialist for a software engineering firm that specializes in realtime-IT for infrastructure (think electrical transmission, oil/gas pipelines, and water pipelines). (I'm not actually allowed to publicly name the company I work for.) Our customers include most of North America's municipal drinking water and most pipelines in North America and some international. We do things like control, monitoring, leak detection, and flow measurement. If we were to screw something up, it's CNN. We try hard not to.
PS. Oh yeah, we're getting into weather for realtime highway updates. Those little weather stations you see on the side of the QE2? Those are ours.