The content originally appeared on: CNN Watch Alex Marquardt's report on the sting operation on Erin Burnett OutFront on Monday, April 10, at 7 p.m. ET. CNN - A team of South Korean spies and American private investigators quietly gathered at the South Korean intelligence service in January, just days after North Korea fired three ballistic missiles into the sea. For months, they'd been tracking $100 million stolen from a California cryptocurrency firm named Harmony, waiting for North Korean hackers […]