Safari Tales is one of the good guys though: not only is it paid for entirely upfront, but it has clear educational goals – "literacy skills through creative play" as its developer puts it.
Perhaps the fire endures in civic memory because it has clear constituencies.
What's different about the current controversy is that it has clear partisan overtones.
It has clear health benefits for both mums and babies – improving life chances, as well as health and wellbeing.
Sudan, meanwhile, said it has clear evidence of South Sudan supporting rebels beyond their national border, including providing weapons.
But it has clear racist implications when "African" is associated exclusively with the fantastic, the occult, the untutored.
It has clear controls and an obvious mechanism for undoing changes, though it would be nice to be able to undo an earlier effect without changing later adjustments.
Yet however short on dazzle and razzle Make the Road may be, it has clear, decisive wins that can be counted.
But YouTube in a statement said it has "clear policies prohibiting content intended to incite violence, and we remove videos violating these policies when flagged by our users".
It has clear antibacterial benefits when used in medical devices, but it has been fairly concretely shown to add little bacteria-fighting value to consumer products.
We want to be sure no strike can go ahead unless it has clear support of at least 40% of the balloted workforce".
