Paul Leventhal, left, president of the Nuclear Control Institute, briefs members of three committees of the Panamanian Congress, two days after observing security measures applied to passage of the Pacific Swan through the Panama Canal.  The joint hearing of the Human Rights, Environment and Panama Canal committees, was chaired by Francisco J. Ameglio, chairman of the Committee on Human Rights, at the far right. (Photo by Raul Escoffery)

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