Suits or Shirts?

Odd. Watching the news, they are interviewing the ticket check-in guy who took atta's ticket. He states that they came up to the counter wearing suits, looking very suspicious but he put it out of his mind. Then the feds show him the security tape and he says that its definitely the two men that he saw, except they were wearing just button down shirts with open collars, as opposed to the suits they were in when he saw them.

Anyone know more about this? Is the idea that they changed clothes? It seemed like they were leaving the table that you run your bags thru prior to check in at the gate, but I have no idea what Logan Airports setup is.

I haven't heard the ticket agent's testimony, but I did see video tape of Atta and company at Boston. They were not wearing suits. Do you know what a good suit costs these days? Casual attire is always the uniform of the day for suicide bombing.

Or more like they were testing security?