I know this is an older story but one you should be interested in:

Opportunity and value come together on construction job sites all across America and thieves are making the most of it. Stealing heavy equipment is a thriving crime.
The total value of stolen equipment each year in the United States is in the neighborhood of $300 million to $1 billion. The range is so large because of incomplete theft data, but any number you pick within that range represents a big problem.

The thefts are happening so often because construction equipment and machinery are relatively easy to steal and easy to get rid of in a shadowy worldwide market, including a black market. Furthermore, each piece of equipment generally carries a high profit margin for the successful thief.

Rest of the story: http://www.cegltd.com/story.as.....story=5408