With the premise 'By 8:00 A.M. on the morning of Tuesday, September 11,2001, they had defeated all the security layers that America's civil aviation security system then had in place to prevent a hijacking.', is 'There were inadequate measures in place to stop a hijacking from taking place.' simply an unrelated statement?
By 8:00 A.M. on the morning of Tuesday, September 11,2001, they had defeated all the security layers that America's civil aviation security system then had in place to prevent a hijacking.###There were inadequate measures in place to stop a hijacking from taking place.