Brazilian President Dilma Rousseff on Tuesday criticized the United States for spying, and said Brazil would adopt legislation and technology to protect itself against illegal interception of communications. \"Meddling in such a manner in the lives and affairs of other countries is a breach of international law and as such it is an affront to the principles that should otherwise govern relations among countries, especially among friendly nations,\" Rousseff told the annual gathering of world leaders at the United Nations General Assembly in New York, the World Bulletin reported.