You are perhaps the first here to actually read the whole article. The writer winds a circuitous route before concluding that the Americans aren't wrong. It is almost like amateur dentistry to get him to go to the next step and admit we're right, and he can't quite do it...
But he admits that we aren't wrong.
America has the power and inclination to promote justice in the world, and Richard Perle may indeed be right: Perhaps Europeans don't have the most courageous of instincts. Not anymore.
My Regards..............