As we reviewed each other’s books about security, student protests erupted on campuses from the Sorbonne to Sydney. Although the protestors’ message often vanished in the fog of the culture wars, one demand rang out: Universities should divest from security-capitalist enterprises that send weapons and surveillance systems to warzones. Back in 1961, U.S. President Dwight D. Eisenhower warned of the unwarranted influence of national security interests on public life, especially on “the free university.” Today, well over half a century later, university managers invest in arms companies, salivate over defense contracts, and compete to host homeland security “fusion centers.” The free university too has been captured by security capitalism.