"General authorities in recent years have criticized Mormon historians for republishing in part or whole out-of-print Church publications such as the 1830 Book of Mormon, the Journal of Discourses (edited and published for thirty-two years under the auspices of the First Presidency), and statements taken from former Church magazines published for the children, youth, and general membership of the Church. It is an odd situation when present general authorities criticize historians for reprinting what previous general authorities regarded not only as faith-promoting but as appropriate for Mormon youth and the newest converts.
"Elder Packer specifically warns against historians using "the unworthy, the unsavory, or the sensational," from the Mormon past, merely because it has been previously published somewhere else, and he berates historians for their "exaggerated loyalty to the theory that everything must be told." But this raises the question of personal honesty and professional integrity. If a historian writes about any subject unrelated to religion, and he purposely fails to make reference to pertinent information of which he has knowledge, he is justifiably liable to be criticized for dishonesty…
"Boyd K. Packer demands that Mormon historians demonstrate and affirm that "the hand of the Lord [has been] in every hour and every moment of the Church from its beginning till now."…Mormon historians may share the convictions of the Nephite prophets and Boyd K. Packer that the "hand of the lord" operates throughout history and that "His purposes fail not," but they also have an obligation to examine the evidence, reflect upon it, and offer the best interpretations they can for what has occurred in Mormon history…
"The tragic reality is that there have been occasions when Church leaders, teachers, and writers have not told the truth they knew about difficulties of the Mormon past, but have offered to the Saints instead a mixture of platitudes, half-truths, omissions, and plausible denials. (D. Michael Quinn, On Being A Mormon Historian, 1982, pp. 2, 8-10, 13-14, 16-22; revised and reprinted in 1992 in Faithful History: Essays On Writing Mormon History, pp. 69-111)
http://trialsofascension.net/Mormon/lying.html