David Talbot, founder of Salon.com ... believes that new evidence, including his own research encompassing more than 150 interviews, further undermines the conclusions of the Warren Commission Report. [His new book] "Brothers" ... stresses the extent to which the Kennedy administration faced political pressure from the extreme right, including elements of the CIA leadership, the national security apparatus [and] anti-Castro Cubans. JFK incurred the wrath of his enemies and incubated a desire for revenge in many of them. The author will convince many ... that the likelihood of a conspiracy to assassinate JFK (and maybe RFK) is significant. Talbot's highly readable, at times gripping book makes the case for releasing the classified documents pertaining to the JFK assassination. Declassified JFK files reveal that in 1963, [CIA agent George] Joannides was the agent in charge of one of the most powerful Cuban anti-Castro organizations in Miami, the Revolutionary Students Directorate, or DRE. A few months before JFK's assassination, the DRE had significant contact with Lee Harvey Oswald. In the course of four intensive investigations of the JFK assassination, however, the CIA failed to divulge information about this connection, or even that Joannides was the CIA officer assigned to manage the DRE, and refused to release important parts of Joannides' personnel file. In September, on grounds of national security, the CIA successfully thwarted a request for such information. Until it is released, many ... will reasonably speculate that crucial information about the JFK assassination is being concealed.