Sir Ken McCallum, director general of MI5—the United Kingdom's domestic security and counterintelligence agency—delivered his annual threat update last week. He warned of a “new era” for national security, one that required “a new response.” “The speech could still have gone further in underscoring the importance of soft power and connecting the dots between what is happening in society—polarization, distrust, bigotry, racism—and the country's vulnerabilities to terrorists or state actors," writes expert @Farah_Pandith and Ezra Hess. cfr.org/articles/unpacking-m…