According to a public notice from the U.S. Embassy in Gaborone, Botswana, all individuals applying for an A-3, C-3 (if a domestic worker), G-5, H1-B, H-3, H-4 dependent of H-1B and H-3, F, M, J, K-1, K-2, K-3, Q, R-1, R-2, S, T, or U nonimmigrant visa are instructed to adjust the privacy setting on all social media accounts to “public” or “open” to facilitate vetting necessary to establish their identity and admissibility to the United States under U.S. law.
The Embassy further state that more information is available at http://www.travel.state.gov.