Paul Trejo argues that FBI agent James Hosty concealed threats to JFK, misled the Secret Service, and manipulated intelligence about Lee Harvey Oswald. Hosty tracked Dallas extremists but withheld key data, including ties to Robert Surrey and Soviet agent Kostikov. His shifting accounts, destroyed notes, and unauthorized intel access suggest deeper complicity. Trejo sees Hosty’s omissions as central to the JFK assassination cover-up. Hosty played a pivotal role by withholding threat intelligence from the Secret Service’s Protective Research Section (PRS), which relied on local FBI offices to flag risks. In Dallas, Hosty’s office falsely claimed "there were no threats," ignoring violent protests against Adlai Stevenson and the "WANTED FOR TREASON: JFK" handbill. The PRS repeatedly questioned these omissions, but the Dallas FBI insisted there was no danger.