Pangram, an A.I. detection start-up, promises near-perfect accuracy in sniffing out writing and imagery that wasn’t made by humans. It’s raising some big questions along the way.Pangram, an A.I. detection start-up, promises near-perfect accuracy in sniffing out writing and imagery that wasn’t made by humans. It’s raising some big questions along the way. NYT > Business [ SOBAN NEWS: International and National ]