"Except the statement is untrue. Wages have neither fallen nor stagnated. It is another one of those made up factoid Economic Isolationists scream over and over that has no base in factual reality."
Yes Sir, I believe that looking at it nationally, you are correct. But in certain regions, for example in rural areas of the country where there were a few key manufacturing employers, I believe there is some evidence for this, although I have to admit it is hard to point to one factor, like nafta, as the cause.
Generally speaking, there is a historical downward trend (apart from your geographic distinction) of real wages for people with less than a high-school education. What that means in terms of policy-making is almost nothing, other than people should be encouraged to get as much of an education as possible.