You could also use Hadoop to analyze data from, say, a global network of distributed pollution sensors to find factories that are polluting. Anyway, the point I

You could also use Hadoop to analyze data from, say, a global network of distributed pollution sensors to find factories that are polluting. Anyway, the point I was trying to make is that Hadoop is a nice building block. You could use Hadoop to mine any large data set, my examples were arbitrary.