(NEWSER) – Is Edward Snowden looking to decamp from Russia to Brazil? He strongly implies as much in an open letter today, published at Folha. "I have expressed my willingness to assist wherever appropriate and lawful," he writes, "but unfortunately the United States government has worked hard to limit my ability to do so. … Until a country grants permanent political asylum, the US government will continue to interfere with my ability to speak." The rest of the letter is spent decrying NSA activities, which he says is a "culture of indiscriminate worldwide surveillance" that is "collapsing."