 From Little Rock Public Radio, I'm Nathan Treese. Attorney General Tim Griffin spoke on KARK Channel 4 Capital View this week. He spoke about recent lawsuits filed by the state, including those against Optum and Express Scripts, which are pharmacy benefit managers, or PBMs. PBMs are the middleman between pharmaceutical companies and health insurance. Griffin said he filed the suit because he believes PBMs were one of the key players in the opioid crisis.