There seems to be no limit to the cats whistleblower Edward Snowden has put among the pigeons. Among the gems about the U.S. National Security Agency's spying mischief Mr. Snowden has revealed is that it monitored Brazilian President Dilma Rousseff's telephone calls and emails, spied on communications by her aides and targeted Brazil's biggest oil company, Petrobras.
Politically, Rousseff may have felt her decision was necessary in light of the fury that details of U.S. spying activities have created among the Brazilian public. Nonetheless, it is very serious stuff when the president of Brazil tells the president of the United States that a meeting is off because he hasn't met her expectations. It illustrates in part the declining influence of the United States in South America and the rising influence of Brazil, but it also illustrates the seriousness of the NSA's misbehaviour.
Part of that seriousness is the spying on Petrobras. It suggests that the NSA is conducting intelligence operations beyond that of ensuring national security and is now engaging in industrial espionage, precisely what it claims makes its operations different from those of Chinese and Russian agencies.
The NSA has been very naughty indeed. Its alienation even of friends will not help make the United States a safer place.