What historiographical points have been particularly interesting, or contentious, or murky?

什么历史传记的观点特别有趣、或特别有争议或特别含糊？

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The authorities have failed to provide any proof or supporting evidence to explain the Moscow bombings, adding another layer of complexity to an already murky episode.

官方失败了，没有提供任何证据，也没有找到任何强有力的支持根据，来解释莫斯科炸弹事件，只是给黑暗事件增加了一层复杂性。

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Many should be closed or consolidated, some have murky ownership.

许多小银行应关闭或合并，有些小银行产权不明。

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This area could be called the dangerous or murky middle: neither the high end, nor the low end.

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Along the way, he makes judicious use of political events, large and small, to show what happens to men who get close to the centre of power, be they senators, murky intelligence agents or small-time hoods.

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Every few seconds, the creature's head or dorsal fin would poke through the murky waters, creating ripples and drawing murmurs from onlookers, who stood in the cold with cameras.

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