The US government has stopped making new visa appointments for students from other countries for a short time. They want to check their social media more carefully. This rule does not affect students who already have appointments. A message from Secretary of State Marco Rubio says that consulates should not make more appointments until they know how to check social media better. This happened after the Trump government made stricter rules for international students. For example, they stopped Harvard University from accepting international students and cancelled the visas of many students already in the US. The Biden government is still checking social media. If they stop making appointments for too long, it could make it difficult for students to start their courses in the summer or autumn. Also, fewer international students could cause problems for university money.