Welcome to Foreign Policy’s Security Brief. Let’s start off with a bit of good news (finally): Pfizer-BioNTech’s vaccine trial data is holding up in the real world. A promising new study involving more than half a million people in Israel shows 94 percent effectiveness against COVID-19 symptoms.
The highlights this week: The Pentagon’s long fight against white supremacy in its own ranks, the Biden team staffs up key posts at USAID, Homeland Security officials now want troops at the southern U.S. border for years, worrying new revelations on Chinese hacking, and more.
