Furthermore, the truth is always hidden, the point is not to uncover the truth, but to discover it. The difference is that you can discover the truth, even without method of certifying that the truth has been discovered i.e. uncovering. Thus, the truth is always hidden, though not unobtainable.
The only method with any hope of discovering the truth is the critical method, and so if we hope to learn anything we need to enter into critical discussion. There is certainly wisdom to be had in recognising the difficulty of wading through such politically sensitive quagmires, but that doesn't mean we cannot proceed, only that we must keep our critical instincts sharper than ever.
I am also fully aware of my own ignorance surrounding such controversies, so I am attempting to keep any substantial comments to my areas of interests, or to more obvious facts, such as that polar bears must have survived similar great meltings in their evolutionary past (indeed, how do you think they evovled into such strong swimmers?), or that wine was grown in many parts of Britain during Medieval times.
Thank you for you words of warning, but they are quite unecessary.