The Warren Commission report was still being hotly debated, and Jesse Jackson had just announced that it was the FBI and the CIA that had killed Martin Luther King Jr. Mr. Lowenstein, in his fourth appearance on Firing Line, passes along his wife's worry that instead of being known as "former congressman" he will become known as "current kook," but he has come to believe that Sirhan Sirhan may not have fired the bullet that killed Bobby Kennedy. The problem arises, as Mr. Lowenstein explains, because "the trial... didn't deal with these [ballistics] issues because Sirhan's attorney announced that he had murdered Kennedy and that the issue was his sanity.... So none of this evidence was entered in the trial at all." Why does it matter? As Mr. Buckley works through it, "It strikes me as unlikely, given the fact that everybody agrees, including yourself, that Sirhan Sirhan was trying to kill Kennedy, that merely identifying somebody else who was also trying to kill him is going to excite the sort of inquisitive appetites of our people. But if that other person is himself just the tip of an iceberg ..."