 It does so by making available, discreetly and in confidence, the experience of former leaders to today's national leaders.It is a not-for-profit organisation composed of former heads of government, senior governmental and international organisation officials who work closely with heads of government on governance-related issues of concern to them.Chalker is a member of the board of trustees of Sentebale, a Charity set-up to reach Lesotho's neediest children, many of whom are the victims of extreme poverty and the HIV/AIDS epidemic of that area.