http://www.youtube.com/user/USMerchantMarines?feature=mhee What is TWIC | Transportation Worker Identification Credential.
TWIC is a common identification credential for all personnel requiring unescorted access to secure areas of MTSA -regulated facilities and vessels, and all mariners holding Coast Guard-issued credentials. Individuals who meet TWIC eligibility requirements will be issued a tamper-resistant credential containing the worker's biometric (fingerprint template) to allow for a positive link between the card and the individual.
TWIC
