Ranjani Srinivasan she felt the atmosphere was volatile and dangerous, adding that she never thought of going through such a nightmare

Columbia University, home to numerous international students, has emerged as a key battleground in the government's push to curb campus activism.

Ranjani Srinivasan never imagined she would have to leave behind everything she had built in the United States-the academic career she worked so hard for, the life she had established, and even her beloved cat. But when federal immigration agents started showing up at her door, she knew she had no choice.