"Chen's force for change came from the bottom up, " says Ingrid Liao, a former assistant to the director of social services during the mayor's term.

CNN: Pressure Points

The panel will include Ms. Gretchen Kalonji, Assistant Director-General for Natural Sciences, and Eduardo da Costa Paes, mayor of Rio (Brazil).

UNESCO: EDUCATION

The meeting will be introduced by Stefan Kitanov, Director of the Sofia International Film Festival, and opened by Todor Chobanov, Deputy Mayor of Sofia, Mitko Todorov, Deputy Minister of Culture, and Francesco Bandarin, UNESCO Assistant-Director General for Culture.

UNESCO: OFFICE IN DHAKA