As Brazil Snubs the U.S., Who Loses? After calling off a state visit to the White House because of revelations that the National Security Agency had spied on her personal communications, President Dilma Rousseff of Brazil told the U.N. General Assembly on Tuesday that the spying had violated international law and principles of human rights. The dispute has stalled efforts to continue strengthening relations between the two countries as Brazil's economic power has grown, and Washington has tried to reduce the influence of China. But which country has the most to lose from the deterioration in relations?