In 2018, Russian exile Sergei Skripal and his daughter were nearly killed in an audacious poisoning attempt in Salisbury, England. Soon, the identity of one of the suspects was revealed: he was a Russian spy. This huge investigative coup wasn't pulled off by an intelligence agency or a traditional news outlet. Instead, the scoop came from Bellingcat, the open-source investigative team that is redefining the way we think about news, politics, and the...