I'll conceit that I've been ascribing opinions to you without allowing you the chance to actually voice them. I'll try to avoid doing that. If the accusation is that their bosses were authorizing the indefinite detention of people and willfully killing droves of civilians, I'm not entirely sure how much of an effect bringing up those points to those same people would have. The chain of command goes all the way to the top and, if his fiery rhetoric is any indication, I doubt Netanyahu would be particularly surprised/disgusted by what these whistleblowers claim is happening (much like GWB legalizing waterboarding when it was brought to his attention, rather than outlawing it). That is an opinion, since we have no way of knowing one way or another. That said, I haven't seen any indication that they haven't brought these concerns up with officials. I also would assume that, if these things are occurring, the people writing the letter would be the tip of the iceberg compared to the number of formal complaints sent to officials (considering the accusations are so glaring). Considering the practice is purported to have continued all the way up until now and I haven't heard about any sweeping changes or repercussions to these accusations, it may be reasonably safe to assume a significant number of complaints/reports have been swept under the rug. This is also an opinion. At this point, it's all speculation. I have my own hypothesis, everyone else is entitled to their own.