Complex sentence: US-VISIT (United States Visitor and Immigrant Status Indicator Technology) is a U.S. immigration and border management system, which has the ability to verify that travelers are who they say they are and do not pose a threat to the United States.
Split into simpler sentences: US-VISIT (United States Visitor and Immigrant Status Indicator Technology) is a U.S. immigration and border management system. It is claimed to have the ability to verify that travelers are who they say they are and do not pose a threat to the United States.