CBS News: An investigation by the Environmental Protection Agency's inspector general has found that White House officials instructed the agency to be less alarming and more reassuring to the public in the first few days after the Sept. 11 attacks, The New York Times reports in its Saturday editions.

The investigation specifically cites official statements about air quality after the collapse of the World Trade Center.

The agency "did not have sufficient data and analyses" to make a "blanket statement" when it announced seven days after the attack that the air around ground zero was safe to breathe, the Times quotes the report as saying.

"Competing considerations, such as national security concerns and the desire to reopen Wall Street, also played a role in E.P.A.'s air quality statements," the report, which has not yet been made public, said.

In an evaluation of the agency's overall response to the attack on the World Trade Center, one chapter of the report focuses on the role of the White House Council on Environmental Quality in helping to shape the agency's communication after the attack, the Times says.