There are a lot of things that can go wrong with the
140,695 miles of railroad covering America. The tracks have to be inspected regularly and, rather than send crews out in full-sized train cars, these modified automobiles often did the job.
More » Source: http://feeds.gawker.com/~r/gizmodo/full/~3/CqvzmriufHA/
MILLICOM INTL CELLULAR MOBILE TELESYSTEMS NANYA TECHNOLOGY NII HOLDINGS NIKON
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