“Suggesting that activities that last occurred more than 16 years ago are responsible for today’s complex and multifaceted opioid crisis is deeply flawed.” That’s how a spokesman for Purdue Pharma reacted to a report that the company knew its opioids were being widely abused long before they admitted they did. (What’s deeply flawed is arguing that lighting a forest fire isn’t arson because the fire has been burning for so long and has done so much damage.)