This episode's headline: Homeless Kids; Cutting Airfares; Insider Trading. The guests include In Indianapolis: JAMES BROWN, Aviation Daily; In Washington: GARY LYNCH, Securities and Exchange Commission; MICHAEL KLEIN, Securities Lawyer; Reports from NewsHour Correspondents: ELIZABETH BRACKETT, in Chicago; JUNE CROSS, in New York; JIM FISHER (Kansas City Times), in Hoxie, Kansas. Byline: In New York: CHARLAYNE HUNTER-GAULT, Correspondent; In Washington: JIM LEHRER, Associate Editor; JUDY WOODRUFF, Correspondent