Brian Williams & Richard Engel ; Bobby Ghosh, Doris Kearns Goodwin & Adam Gopnik; Steven LevyBrian Williams & Richard Engel ; Bobby Ghosh, Doris Kearns Goodwin & Adam Gopnik; Steven LevyBrian Williams & Richard Engel ; Bobby Ghosh, Doris Kearns Goodwin & Adam Gopnik; Steven Levy