$(1)$ It is not mandatory for U$.$S$.$ citizens to have their photo taken. U$.$S$.$ citizens who wish to opt out of the new biometric process may notify a CBP Officer when approaching the primary inspection area and request a manual document check.

$(2)$ U$.$S$.$ Customs and Border Protection will introduce biometric facial comparison technology at the pedestrian border crossings in a southern port of entry in February. The technology will enhance the identity verification process for lawful entry into the United States.

$(3)$ When a traveler arrives at the pedestrian lanes, they will pause for a photo at the primary inspection point. A CBP Officer will review and query the travel document, which will retrieve the traveler's passport or visa photo from government holdings. The new photo of the traveler will be compared to the photo from their travel document. The facial comparison process only takes a few seconds and is over $97$ percent accurate.

$(4)$ CBP is committed to its privacy obligations and has taken steps to safeguard the privacy of all travelers. CBP has employed strong technical security safeguards and has limited the amount of personally identifiable information used in the new biometric process. New photos of U$.$S$.$ citizens will be deleted within $12$ hours. Photos of foreign nationals will be stored in a secure system.

A$)2-4-1-3$

B$)3-4-2-1$

C$)2-3-1-4$

D$)$ no change to the paragraph order is necessary