Anyone Interested in the possibility of Archeological cover ups??
Most claims of this happening in this day and age are utter nonsense. Archaeology is the pursuit of knowledge, and is considered by many be a science (or soft science). We care about evidence. Interpretation of such evidence will vary, so the only cover-ups I can really see happening include the interpretation being skewed toward previously existing understanding of the past, which isn't exactly conscious or malicious.
Otherwise, things could be "covered up" or ignored and not reported on because a developer wants their project done quickly and in the spot they want it done, and some inconvenient archaeology showed up during excavation. This would not be an academic cover-up, but an industry one. I'm quite sure that happens on occasion, and it shouldn't.