The photograph was simple: a woman standing beneath a crimson Harvard flag, the red brick of Massachusetts Hall rising behind her. For the 52-year-old principal of a Delhi school, it was more than a picture — it was proof that she had arrived to begin a master’s program in education at Harvard University. Just three months earlier, she feared this moment might never come. In May, the US Department of Homeland Security (DHS) stripped Harvard of its certification to host international students. Homeland Security Secretary Kristi Noem accused the university of fostering a “hostile” campus climate for Jewish students and...