"It is clear from the record before the Board that the IAM engaged in a vigorous campaign to convey its views. The IAM‘s campaign did not, however, step out of the bounds of allowable ―argument and electioneering‖ as described by Director Eastman above. The Carrier asserts that the IAM created an atmosphere of fear, and interrogated, attacked and retaliated against employees. The interviews with employees conducted by NMB investigators do not support these allegations. Some interviewed employees stated that they were not interested in receiving all or some of the information that the IAM was disseminating; some employees did not agree with the views expressed in IAM campaign material. Employees did not state in their interviews with NMB Investigators that they were coerced or intimidated by the IAM‘s communications or activities. Therefore, there no is basis for finding interference with regard to this allegation."