@15:04, , 7/22/19

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https://www.nytimes.com/2019/07/22/us/puerto-rico-protests-updates.html

https://en.wikipedia.org/wiki/Ricardo_Rossell%C3%B3

https://en.wikipedia.org/wiki/Ricardo_Rossell%C3%B3#Scientific_career

https://en.wikipedia.org/wiki/Economy_of_Puerto_Rico

https://en.wikipedia.org/wiki/Taxation_in_Puerto_Rico

https://en.wikipedia.org/wiki/Welfare_in_Puerto_Rico

https://en.wikipedia.org/wiki/Puerto_Rican_government-debt_crisis