CHESTER-Dianna Marie Coscette of Chester has been selected to participate in the National Student Leadership Conference in Washington, D.C. This program enables outstanding high school students to study international diplomacy, intelligence, national security, policy, and politics with other students from across the United States and from 45 countries from around the world. She will meet officials from the Department of State, the Pentagon, and the White House. These young leaders will learn how to make a positive difference in their communities. Coscette, a student at Monroe-Woodbury High School, has a grade-point average of 98.2. She is a member of the National Honor Society, the Monroe Woodbury Interact Club, and the Varsity Track Team.