[JURIST] The UN upheld its ban on its officials testifying in front of US Congress in a letter from Mark Malloch Brown, chief of staff for Secretary-General Kofi Annan, to Senate investigating subcommittee chair Senator Norm Coleman (R-MN) [official website] that was released Wednesday. The letter is in response Coleman's congressional probe [hearing agenda] into the UN oil-for-food program. The Senate subcommittee had wanted diplomatic immunity lifted for key directors and access to various UN officials. The letter instead suggested the Senate create a briefing schedule [UN News report] that UN officials could attend. Reuters has more.