Summary: <p>THE THREAT TO TIMBUKTU: Ongoing political unrest in the West African nation of Mali has put at risk the desert city of Timbuktu, a UNESCO World Heritage site. Militant Islamists continue to attack the city's historic shrines and mosques, and many fear some sites have already been irreparably damaged. We explore their motives and how Washington and the international community are responding to ongoing instability in Mali. (22 min.) CALORIE POLICE: LEGISLATING HOW MUCH WE EAT: With an obesity epidemic sweeping the country, lawmakers are trying to help Americans slim down and eat healthy foods. New York City may ban sales of large sodas, and the national health care law will require calorie counts on some restaurant menus. But will those measures help? We explore what it takes to change human behavior and trim our consumption of food and drinks. (29 min.)</p>
