This is not really true. The TSA does not intend to collect, but to obtain an "ok person", "not-ok person" stamp. Then they decide with the info they gathered i

This is not really true. The TSA does not intend to collect, but to obtain an "ok person", "not-ok person" stamp. Then they decide with the info they gathered in the conversation with the person in question. They are not obtaining the data and have no intention of doing so. Yet a stamp like "criminal activity in the past" would be a questionable one. I don't know how they stamp the person. Nevertheless I think they are doing a bad thing, because you can rest assured that this collected data won't get deleted, possibly even sold to 3rd parties.