Harvard international student with a private Instagram? You might not get a visa.

Secretary of State Marco Rubio ordered U.S. consulate and embassy officials to scour social media accounts of international students hoping to attend Harvard .

Rubio ordered officials to "conduct a complete screening of the online presence of any nonimmigrant visa applicant seeking to travel to Harvard University for any purpose" Rubio has already personally canceled the visas of more than 300 students for campus activism.