Robert Harrison discusses the thought of Heidegger with guest Thomas Sheehan in this episode of Entitled Opinions, a KZSU Stanford University program. (Note, I edited out the music). http://french-italian.stanford.edu/opinions/
In his later work, Heidegger addresses the question concerning technology. For him, the environment has become a mere “standing reserve”, something without any being of its own, but merely a resource for use. However, he famously rejects the view of technology as a tool which human beings can master and have control over, suggesting instead it is human beings who are under the control of technology. He worries that technology, among other things, is alienating and makes everything the same. Somewhat surprisingly, he traces technological modes of thinking all the way back to the very beginning of Western philosophy itself.