I'm not saying he is wrong, and since I'm not from (or in) the USA, I can't really argue. But from my point of view, the author present alot of facts like : "I

I'm not saying he is wrong, and since I'm not from (or in) the USA, I can't really argue. But from my point of view, the author present alot of facts like : "In the last 10 years or so, the number of people forced to work as contractors has increased exponentially." without offering any "hard" data or links to his sources. Is he using real data as a basis for his arguments?