Doubt grows over preventive war:

"In a televised interview this week, former chief US weapons inspector David Kay said, 'If you cannot rely on good, accurate intelligence that is credible to the American people and to others abroad, you certainly can't have a policy of preemption.'

"And in a speech on the Senate floor Tuesday, Sen. Bob Graham (D) of Florida, former chairman of the Sentate Select Committee on Intelligence, said 'if we continue to rely on preventive or pre-emptive military actions as a central part of our strategy, it is critical that we have accurate intelligence to justify that the threat to be preempted is imminent.'"