Q: Given a text, write a compressed version of it in a single sentence.
There are at least three registered traveler programs underway, at different points in the system, designed and run by two different agencies in the Department of Homeland Security (outside the U.S. VISIT system), which must ultimately be the basis for access to the United States.
A:
There are three registered traveler programs designed and run by two different agencies in the Department of Homeland Security, which must ultimately be the basis for access to the United States.