Please back up your answer with some sources.
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The ones that you never hear about who don't make money off it.  They are the ones that keep it between themselves and close relatives and friends and have no desire to let the world know about any of them.
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This Link Should Help.
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You might find some answers in the links below.
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refer \nhttp://news.thomasnet.com/fullstory/5610
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The link below may help. It has further links within it too.
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Do you have a link to a source? Without reference, how can we study it and attempt an answer?
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In a lot of places they do. I'm going to research it and find a source and then come back and edit this with my source. I remember hearing about places that do that though. Okey doke... I added my source.
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D is your answer, see links below.
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Answer is in the attached link.
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Nice sources to back your claim\n\nTypical for a liberal
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Please, check the links  below..
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Don't take the info here as given. Only believe it if you find real nonpartison evidence. I'm not saying it is true or not, I'm just saying before you believe it, know what you are talking about.
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Umm, didn't you answer your own question in the details?  If you are looking for different information, post it and I will see what I can find for you.
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If you ask these people, they will provide the right answer, and a professional one. Check the source.
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We need more info please.
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I have found a site relating to the topic I can't say that I can vouch for how reputable the information is.  But here is the link you make your own educated decision.  Obviously anyone can fudge numbers to make there own point.
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I've included some links that should help you out.\n\nCheers,\nMatt