Barely one day passed in 2024 before another reminder was issued of one of the most serious developments in national security and terrorism — the increasing prevalence of political assassinations around the world. In South Korea, Lee Jae-myung, leader of the Democratic Party of Korea, was stabbed in the neck on Jan. 2, by an assailant seemingly motivated by a corruption scandal surrounding Lee. The leader survived the attack. The attempt was just the latest in a long — and growing — line of assassination attempts against political leaders. In August 2023, Ecuadorian presidential candidate Fernando Villavicencio was assassinated in...