Few answers in 9/11 cancer study

The most comprehensive study of potential World Trade Center-related cancers suggests possible links with several forms of the disease, but raises more questions than answers and likely won’t end the debate over whether the attacks were really a cause. While the study proposes possible links to prostate, thyroid and a type of blood cancer among rescue workers exposed to toxic debris from the terrorist attacks, there were few total cancers and even the study’s leaders say the results “should be interpreted with caution.”