The handwritten letter said the students "believe we have a responsibility to voice our convictions."
"We do not want America to represent torture. We urge you to do all in your power to stop violations of the human rights of detainees, to cease illegal renditions, and to apply the Geneva Convention to all detainees, including those designated enemy combatants," the letter said.
The designation as a Presidential Scholar is one of the nation's highest honors for graduating high school students. Each year the program selects one male and one female student from each state, the District of Columbia, Puerto Rico, Americans living abroad, 15 at-large students, and up to 20 students in the arts on the basis of outstanding scholarship, service, leadership and creativity.