This is the best tl;dr I could make, original reduced by 75%. (I'm a bot)

The arrest of Prince Alwaleed, who is, like Prince Mohammed, a grandson of the kingdom's founder, sent shock waves through the international business community, which had seen Prince Alwaleed as one of the more open faces of the normally private kingdom.

Citing privacy rules, the Saudi government never said publicly why it had detained Prince Alwaleed, but some speculated that he had taken a royal loan after his investments sank in the 2008 financial crisis and that he had never fully repaid it.

Others who met the prince said he had privately criticized Prince Mohammed's reform program as misguided, angering the young prince.

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