We now have over 8,000 different types of documents that people can use to get into the United States.
We are examining what alternative documents we could use for people in those border areas to go back and forth.
The Visa Waiver Program is one that we've been working on even prior to the bombings in London, taking more precautions as far as making sure there are secured documents for all these people coming through the Visa Waiver Program.