Response to one of the epilogue questions

What is the significance that Malcolm X called Alex Hailey in the middle of the night, told him he trusted him 70%, and hung up? What is your sense about their relationship? 

The significance of Malcolm X calling Alex Hailey in the middle of the night and telling him that he trusted him 70% must mean that Alex gained Malcolm X's Trust. The reason why I say this is because, in the epilogue when Alex Hailey first met Malcolm X to discuss with him how he wanted to write a book based on him, Malcolm X judged him as a African who was hired by a white person to spy on him. Malcolm X at first kept his guard up with Alex but, when time came along they would have conversations like, Alex calling him when he would return to New York. As they would get to know each other more it seems that Malcolm X has a realization that maybe Alex isn't such a bad person to trust.