U.N. human rights envoy to Burma, Paulo Sérgio Pinheiro, met opposition leader Aung San Suu Kyi today at the end of a landmark three-day visit to the military-ruled country. Suu Kyi, the leader of the opposition National League for Democracy, has been held under de facto house arrest since September, with access to her strictly controlled. The envoy, on the first visit by a senior U.N. human rights official to Burma for five years, was not immediately available for comment.