The government of Cameroon says its security forces did not abuse protesters during clashes in two regions last month. Students and professionals in English-speaking parts of Cameroon were denouncing what they call the overbearing influence of the French language in the bilingual country. The United States has expressed deep concern about the situation. The United States ambassador to Cameroon Michael Hoza has called for dialogue in solving the unrest. Moki Kindzeka reports from Yaounde..