BANGKOK - After the only outcomes of a visit to Myanmar by a high-level United States diplomat were "profound" disappointment over its election preparations and a stronger line over its nuclear links with North Korea, President Barack Obama on Friday formally extended sanctions against the country. Washington?s extension of the sanctions followed the visit of US Assistant Secretary of State for East Asia and the Pacific Kurt Campbell to Naypyidaw, the capital, on May 9 for a two-day visit. Campbell met top officials such as Foreign Minister Nyan Win, Information Minister Kyaw Hsan, Science and Technology Minister U Thaung - the point man for US-Myanmar engagement - and Labor Minister U Aung Kyi