Rubio disclosed the figures in a post on X, saying the revocations were carried out within just one month of the Birth Tourism Prevention Task Force becoming operational. US State Department revokes 600+ visas as birth tourism crackdown intensifies. What the birth tourism networks were doingAccording to Rubio, these operations went well beyond simply helping people travel to the United States. He said the State Department would continue using every tool available to it to dismantle birth tourism networks and protect the integrity of American citizenship. "The State Department will use all available tools to dismantle birth tourism networks and defend the integrity of U.S. citizenship," he said.