From the starting point of 'At least some FAA officials in Boston Center and the New England Region knew that a hijacker on board American 11 had said we have some planes.', does 'FAA officials in Boston Center were aware of a hijacker on American 11.' follow as a logical conclusion?
At least some FAA officials in Boston Center and the New England Region knew that a hijacker on board American 11 had said we have some planes.###FAA officials in Boston Center were aware of a hijacker on American 11.