The numbers are at an unacceptable level.

To ensure the integrity of the SENTRI program, we will vigorously pursue prosecution of any participant who attempts to smuggle through the SENTRI lanes.

It's still a pilot program not integrated with the passenger vehicle program.

We will continue to monitor the volume. If appointments have to be extended, we will extend the deadline.

Obviously, people change their situations, and we want to make sure they are maintaining all the requirements of the program.

We've been encouraging them to leave.