Law-abiding citizens value privacy. Terrorists require invisibility. The two are not the same, and they should not be confused.

No operational commander should have to assign a soldier a task that could be done as well by a computer, a remote sensor, or an unmanned airplane.

Sometimes the things we have to do are objectionable in the eyes of others.

Law-abiding citizens value privacy. Terrorists require invisibility. The two are not the same, and they should not be confused.

We should force European governments to choose between Paris and Washington.

Right now, American law bars the admission of aliens suspected of terrorist activity - but not of terrorist sympathies.

The lax multiculturalism that urges Americans to accept the unacceptable from their fellow citizens is one of this nation's greatest vulnerabilities in the war on terror.