I'm borrowing this from one of my more knowledgeable friends:
http://www.freetrade.org/node/782
* Trade has had no discernible, negative effect on the number of jobs in the U.S. economy. Our economy today is at full employment, with 16.5 million more people working than a decade ago.
* Trade accounts for only about 3 percent of dislocated workers.Technology and other domestic factors displace far more workers than does trade.
* Average real compensation per hour paid to American workers, which includes benefits as well as wages, has increased by 22 percent in the past decade.
* Median household income in the United States is 6 percent higher in real dollars than it was a decade ago at a comparable point in the previous business cycle. Middle-class households have been moving up the income ladder, not down.
* The net loss of 3.3 million manufacturing jobs in the past decade has been overwhelmed by a net gain of 11.6 million jobs in sectors where the average wage is higher than in manufacturing. Two-thirds of the net new jobs created since 1997 are in sectors where workers earn more than in manufacturing.
* The median net worth of U.S. households jumped by almost one-third between 1995 and 2004, from $70,800 to $93,100.
http://www.freetrade.org/node/782