http://news.bbc.co.uk/2/hi/americas/4981202.stm <br /><br />The IAEA wants unimpeded access to the Resende plant in Rio state but Brazil argues visual inspection will result in the disclosure of its technological secrets. <br /><br />US diplomats have warned that such a stance by Brazil will send the wrong message, at a time when there is concern about the nuclear programmes of Iran and North Korea.