By Patrick Worsnip

It's not uncommon for journalists at some point in their careers to cross the barricades and become the people who dish out the news as spokespersons for an organization or firm, rather than being on the receiving end. It requires a different set of skills that can make the transition tough, and a stern test confronts former Reuters correspondent Martin Nesirky, who has just been appointed spokesman for U.N. Secretary-General Ban Ki-moon. After a high-flying career at Reuters that saw him fill senior editorial positions in London, Berlin, Moscow and Seoul, Nesirky has had some time to acclimatize to his new role by working for more than three years as spokesman for the 56-nation Organization for Security and Cooperation in Europe (OSCE), based in Vienna. But the move to New York brings much more formidable challenges.