18 Cadets Are Expelled or Resign From Air Force Academy in Cheating Scandal

The United States Air Force Academy has expelled 15 cadets and three more have resigned in a cheating scandal.

The scandal centered on a 25-question weekly test of knowledge about the Air Force, given in late January, that all freshmen were required to take. The investigation began in February after two cadets reported that classmates had shared the answers through social-networking Web sites.

Twenty-two other cadets were accused of cheating; of those, 13 were placed on six