The head of the government’s independent commission investigating the Sept. 11 attacks said for the first time yesterday that 9/11 could have been and should have been prevented. In an interview with CBS News, the former New Jersey Republican governor Thomas Kean said “As you read the report, you’re going to have a pretty clear idea what wasn’t done and what should have been done. This was not something that had to happen.” While not identifying any officials by name Kean laid the blame on the Bush administration. Kean said “There are people that, if I was doing the job, would certainly not be in the position they were in at that time because they failed. They simply failed.” Kean was appointed to head the commission by President Bush.