What is his claim and how does this impact the international relations research that desires to be empirical?

Jonah Lehrer presented an article in the New Yorker that suggests that the scientific method may be more limited than most researchers wish to believe.

What is his claim and how does this impact the international relations research that desires to be empirical?

You can access the articluvle at the following link: http://www.newyorker.com/magazine/2010/12/13/the-truth-wears-off