Every once in a while, an event will come along and remind us how limited our understanding of the past is. The Hofmann forgeries fascinate me, mostly because of how close we came to completely misunderstanding the restoration and Joseph Smith. Even more remarkably, the man responsible was not a contemporary of Joseph Smith, but a returned missionary living 150 years afterwards. We have enough trouble reconciling stuff Joseph said (see Zelph); what would we do if we had to defend white salamanders too?
My question is, considering the relative ease with which Hofmann fabricated Mormon history (and he could have succeeded too, had he not been greedy), does this undermine your confidence in other sources for early Mormon history? Are we under misapprehensions about troubling aspects of Church history or do we pretty much have the right idea? Are falsifications like Hofmann's likely to get found out, simply because people are terrible at keeping secrets?