The United States needs to do more to reduce demand for illegal drugs if it wants to help reduce the violence that has wracked its southern neighbor, Michelle Obama said Wednesday. The first lady of the United States made that comment after meeting with her Mexican counterpart, Margarita Zavala de Calderon, whose "New Life Centers" help with prevention and education so that fewer young people will become addicted. "We need to do more of the same," said Obama, who cited education and opportunity as key elements to any successful anti-drug campaign. "What we do know in both countries is that,...