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With the exception of sound & water cannons, all of these other methods have been used in the last two weeks, with many recorded usages on peaceful protesters.

If governed properly, populations tend to not riot in the first place, so I see this as a moot point.

The alternatives would be the government not giving people a reason to riot.

If we're at the point of debating which weapons are or are not allowed to be used on a civilian population, then the government has already failed in its most basic responsibilities.