New York Times Opinion on Instagram: "“What the hell happened to us?” @nytopinion columnist David Brooks asks in this episode of The Conversation. He joins Robert Siegel and E.J. Dionne Jr. to discuss America’s shared morality — or lack thereof. “I think there was a moral ruination, a loss of moral knowledge that preceded Donald Trump’s arrival on the scene,” he argues. #theopinions #nytopinion"