Anthony Ramos, a Customs and Border Protection officer, checks passengers in at the passport control area at MIA in this 2007 file photo. Thursday, the airport started letting travelers use the Mobile Passport app.
Anthony Ramos, a Customs and Border Protection officer, checks passengers in at the passport control area at MIA in this 2007 file photo. Thursday, the airport started letting travelers use the Mobile Passport app. Joe Raedle Getty Images
Anthony Ramos, a Customs and Border Protection officer, checks passengers in at the passport control area at MIA in this 2007 file photo. Thursday, the airport started letting travelers use the Mobile Passport app. Joe Raedle Getty Images