The U.S. State Department confirmed it is subjecting all 55 million foreigners who hold valid American visas to "continuous vetting," an intensified review that looks for evidence of overstays, criminal activity, public-safety threats or support for terrorist organizations. Visas found to be ineligible will be revoked, and holders already inside the country could face deportation. Officials said the expanded screening—covering law-enforcement and immigration records as well as social-media activity—marks a significant escalation of measures introduced after President Donald Trump returned to office in January. The department has already revoked more than twice as many visas as it did during the same period last year, including nearly four times as many student visas. Separately, Secretary of State Marco Rubio has halted the issuance of work visas for commercial truck drivers pending a review of safety and language-proficiency rules. Immigration analysts noted that many of the 55 million visa holders live abroad and hold multi-year tourist documents, raising questions about the scope and cost of the effort. The policy has also drawn international scrutiny: China’s Foreign Ministry spokesperson Mao Ning urged Washington to stop what Beijing calls unwarranted interrogations and deportations of Chinese students, and to investigate recent incidents at U.S. ports of entry.