American companies should be “champions” of racial healing and avoid the “leaky bucket” scenario in which people of color are hired only to quickly depart rather than be promoted, a leading Black philanthropist has urged. La June Montgomery Tabron is the first female and first Black president and chief executive of the WK Kellogg Foundation, one of the world’s biggest philanthropic organisations, which on Tuesday holds its seventh annual National Day of Racial Healing. Held each year on the Tuesday following Martin Luther King Day, there will be more than 160 events across the country featuring performances and conversations with...