As the march was being planned, activists across the country received bomb threats at their homes and in their offices. The "Los Angeles Times" received a message saying its headquarters would be bombed unless it printed a message calling the president a "Nigger Lover". Five airplanes were grounded on the morning of August 28 due to bomb threats. A man in Kansas City telephoned the FBI to say he would put a hole between King's eyes; the FBI did not respond. Roy Wilkins was threatened with assassination if he did not leave the country.