In recent weeks, some police unions in the U.S. have been pushing back hard against criticism from the public. And as governments across North America are responding to calls to defund the police, there’s been heightened focus on how powerful these unions really are, how they’ve been an obstacle to reform in the past, and how they might stand in the way this time around. Today, we’re joined by Global News reporter Brian Hill to talk about his new story on the role of police unions.