The two index fingers of a visa applicant will be electronically scanned in an inkless process at the beginning of the nonimmigrant visa interview . collecting the fingerprints should add no more than one minute to the application process and in most cases will take only seconds 在申请签证面谈时，签证申请人的左右食指经过无墨电子扫描，整个过程通常不超过一分钟，在大部份的情况下，只须数秒。
