Kenyans and outside observers are on edge over upcoming elections, which the country must take pains to show are free and fair. U.S. Secretary of State Hillary Clinton captured the concern in recent statements expressing her apprehension. The African country has taken steps to avoid repeating the disaster that swept the nation after the disputed 2007 vote. Nevertheless, entrenched tribal affiliations, combined with a history of electoral irregularities and violence, will test those reforms.