Is 'The duty officer replied that security personnel at headquarters had just begun discussing the apparent hijack on a conference call with the New England regional office.' a clear rebuttal of the premise 'The security personnel are said to have discussed a hijacking of the plan.'
The duty officer replied that security personnel at headquarters had just begun discussing the apparent hijack on a conference call with the New England regional office.###The security personnel are said to have discussed a hijacking of the plan.