First Lady Michelle Obama urged young Africans on Wednesday to fight for women's rights and battle the stigma of AIDS, using her husband's "yes, we can" campaign slogan to motivate youth across the continent. Obama is on her second solo trip abroad as first lady to promote issues such as education, health and wellness. But her speech to a group of young women and men at Regina Mundi Church, which played a role in South Africa's anti-apartheid movement, touched on much harder topics: race, discrimination, democracy, and development. Obama, who is traveling with her mother and two daughters, drew on...