US opinion on trade declining

Protectionism becomes more likely during economic downturns, and Emmanuel notes that public support is headed that way:

The most recent Pew Global Attitudes survey found that, in a sample of twenty-four countries, the United States came dead last in terms of viewing trade favourably… “Support for international trade continues to decline in the United States – 53% of Americans say trade is good for their country, down from 59% last year and 78% in 2002. Support for trade is lower in the U.S. than in any other country included in the survey.”

Addendum: See Ben Muse (1,2), who is on top of this topic.