September 23, 1999

Atty Gen Janet Reno and FBI Dir Louis J Freeh order Federal agents to broaden their investigation into evidence of Chinese nuclear espionage, moving far beyond Government's earlier scrutiny of Wen Ho Lee, scientist fired from Los Alamos National Laboratory; Government officials say widening inquiry will include reopening fundamental debate of whether US nuclear secrets were stolen; say Government will conduct inquiry into allegations that China obtained secret information about design of America's most advanced nuclear warhead, W-88 (M)

Article on scene in Tali, Taiwan, following Sept 20 earthquake describes efforts to rescue 39 people trapped in rubble of 13-story apartment building; notes that no one knows if any are still alive (M)

Anna Kisselgoff reviews Dance Theater of Harlem performance, which includes two new works; photos (M)

Instant message programs, which allow computer users to carry on quick on-screen conversations with one another, are mixed blessing in workplace; messages that pop up on screen at inopportune moment can destroy workers' concentration; thoughtless text scrawled and sent in haste can spark on-line arguments; in some offices, question of who is privileged enough to receive certain instant messages is creating tortured pecking order; unlike E-mail or voice mail, which can be acknowledged whenever it is convenient, instant messages appear on screen as soon as they are sent, and cannot be ignored; drawing (M)

Improvisational singer Bobby McFerrin to open New Jersey Performing Arts Center's fall season with a capella concert; Royal Court Theater will return to its rebuilt London theater in Jan with new play, Dublin Carol, by Conor McPherson; Wadsworth Atheneum, Hartford, to open exhibition of works of Andy Warhol, complimented by related events; Authors Guild to hold panel discussion featuring writers whose books were made into movies; 15 musicians and bands are nominated to Rock and Roll Hall of Fame, Cleveland; photos (M)