According to an FBI memo obtained by the Center, a nameless ABC News journalist contacted the FBI on the evening of the bombing to pass along information he had heard from a source: That the "bombing was sponsored by the Iraqi Special Services" and that two more attacks in Los Angeles and Houston were imminent.
The Center didn't name the informant, but we've learned he was Christopher Isham, who is now a vice president at CBS News and the network's Washington bureau chief.
Isham's tip was of course not true, and ABC News never reported it. But the FBI found him useful enough to open an informant file on him, and circled back a year later to ask who his or her source was. Astonishingly, Isham gave him up: