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Africans have world's greatest genetic variation

Study also found majority of African-Americans trace back to West Africa
Randolph E. Schmid
Africans have more genetic variation than anyone else on Earth, according to a new study that helps narrow the location where humans first evolved, probably near the South Africa-Namibia border. The largest study of African genetics ever undertaken also found

Americans high on Obama, direction of US.

WASHINGTON – For the first time in years, more Americans than not say the country is headed in the right direction, a sign that Barack Obama has used the first 100 days of his presidency to lift the public's mood and inspire hopes for a brighter future. Intensely worried about their personal finances and medical expenses,