Responding to new allegations of drug use by sprint star Marion Jones, the world governing body of track and field (IAAF) will consider today whether to conduct a formal investigation of Jones, an IAAF official said yesterday. IAAF General Secretary Istvan Gyulai said the IAAF had obtained transcripts of last night's ABC News "20/20" interview in which Victor Conte -- the founder of the Bay Area Laboratory Co-Operative (BALCO) who is under indictment on federal steroid charges -- claimed to have given steroids and other drugs to Jones before the 2000 Olympics.