... There are real issues there.
(Neil Macdonald of the CBC): Are you talking about the 9/11 perpetrators?
[Napolitano]: Not just those but others as well. So again, every country is entitled to have a border. It's part of sovereignty. It's part of knowing who's in the country.
The "millennium bomber" who tried to blow up LAX did come over the Canadian border. However, the 9/11 terrorists did not...