See also Sixth Amendment (publicity) Venue transfer in federal court is governed by Federal Rule of Criminal Procedure 21, which instructs that a “court must transfer the proceeding … to another district if the court is satisfied that so great a prejudice against the defendant exists in the transferring district that the defendant cannot obtain a fair and impartial trial there.” As the language of the Rule suggests, district-court calls on the necessity of transfer are granted a healthy measure of appellate-court respect. See Platt v. Minnesota Mining & Mfg. Co., 376 U. S. 240, 245 (1964) . Federal courts have invoked the Rule to move certain highly charged cases, for example, the prosecution arising from the bombing of the Alfred P. Murrah Federal Office Building in Oklahoma City. See United States v. McVeigh, 918 F. Supp. 1467, 1474 (WD Okla. 1996). They have also exercised discretion to deny venue-transfer requests in cases involving substantial pretrial publicity and community impact, for example, the prosecutions resulting from the 1993 World Trade Center bombing, see United States v. Salameh, No. S5 93 Cr. 0180 (KTD) (SDNY, Sept. 15, 1993); United States v. Yousef, No. S12 93 Cr. 180 ...