De complexes relations raciales: les ancêtres blancs de Michelle Obama

The First Family: A New Glimpse of Michelle Obama’s White Ancestors

http://www.nytimes.com/interactive/2012/06/22/us/first-lady-family-q-and-a.html?ref=politics#/#1

Meet Your Cousin, the First Lady: A Family Story, Long Hidden

http://www.nytimes.com/2012/06/17/us/dna-gives-new-insights-into-michelle-obamas-roots.html?pagewanted=all