The Department of State Services (DSS) now check travelers passport with their Facebook page at the airport according to this twitter user below.
Read what the twitter user said about the DSS:
“Sis in law came in from the UK yesterday. Confirmed that at the airport DSS takes your passport and checks it against your FB page,
“If you’ve written against PMB they detain you demanding to know why you’re coming to Nigeria. Your own country and issue stern warnings.”