He became an activist on the issue a dozen years ago when state officials discussed an effort to combat the frogs on the Big Island by bombing them with a diluted caffeine spray in an effort to give them heart attacks.

WSJ: When It Gets Too Noisy in Paradise, They Call the Frog Whisperer

Throughout Friday and Saturday, this bustling neighborhood was a battleground as riot police used water cannons, tear gas, pepper spray and armored personnel carriers to prevent protesters from entering this transit and commercial hub at the heart of the city.

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