Recent study of U.S. government provides the latest evidence of a systematic cover-up of the health toll from pollution after the 9/11 disaster, which doctors fear will cause more deaths than the attacks themselves.

Belfast Telegraph says, The Bush administration suppressed evidence of increasing danger and officially announced that the air around the felled buildings was "safe to breathe".

But results of the government study, conducted by a consortium of researchers at Mount Sinai School of Medicine, Columbia University, New York University, Johns Hopkins University, The University of Medicine and Dentistry of New Jersey, and the University of North Carolina-Chapel Hill, show exposure-related increases in new-onset cough, wheeze, shortness of breath, and bronchial hyperreactivity more than 2