Happy Birthday, Madiba! South Africa Honors 95-Year-Old Nelson Mandela

South Africans celebrated Nelson Mandela's 95th birthday by volunteering 67 minutes — the number of years Mandela spent fighting apartheid and serving as his nation's first black president. Kwame Holman reports on how people around the world marked  WASHINGTON — President Barack Obama and first lady Michelle Obama say the world can honor Nelson Mandela [...]