"Every time I find one of these lunatics, I take their visa away," Rubio said. His remarks at a press conference in Guyana followed the arrest of another student involved in anti-Israel protests. Rumeysa Ozturk is a Turkish national pursuing a master's degree at Tufts University in Massachusetts and a graduate of Columbia University. She had criticized Tufts' administration for failing to recognize what she called the "genocide of the Palestinian people" and for maintaining ties with companies connected to Israel. Undercover agents arrested her near campus as she was returning from a Ramadan iftar prayer.