Washington, November 14, 1957-3;37 p.m.
262. During meeting at Justice November 13 to discuss next steps in matter of Prio (Embtel 251) and other revolutionary exiles, Justice asked Department's assistance in obtaining GOC's assurance that three Cubans could give sworn testimony in US at early date . . . . Unless it perceives objection, Embassy instructed obtain Guell's assurances cooperation these requests.
FYI only, these requests pertinent Miami grand jury investigation beginning November 19 re possible violation our laws by Cuban revolutionaries including Prio. In this connection Assistant Attorney General Tompkins plans fly to Habana November 17 for short visit without publicity to confer with Ambassador and any Cuban officials Ambassador considers appropriate including Batista. Tompkins plans give GOC advance information investigation and request cooperation. Department considers this visit would be most helpful and hopes Ambassador concurs. Prompt reply needed. Travel details will follow. Investigation should have effect of 1) showing GOC our serious intent 2) discouraging illegal activities Prio and followers and 3) providing groundwork for approach to Batista on possible political solution you discussed Embtel 251 or alternative possibilities. Now contemplated latter approach will coincide with planned Wieland visit Habana end November which subject another communication.
 Source: Department of State, Central Files, 737.00/11-1457. Secret; Niact. Drafted by Leonhardy and Wieland; approved by Snow.