The Trump administration is considering mandatory social media checks for all foreign students applying to study in the US. A cable obtained by Politico directs US embassies and consulates to halt scheduling new visa interviews for students until further notice to prepare for stepped-up vetting. The order, signed by Secretary of State Marco Rubio, signals a potential expansion from previous policies, which mostly targeted students who had participated in campus protests, specifically those involving opposition to Israel's actions in Gaza. The administration hasn't detailed what future social media vetting would look for, but the cable referenced executive orders aimed at...