As an aside - I've never had the opportunity to rant about this before - the Dane County Regional Airport is laid out in such a way that there are two escalators that go up to the security checkpoints on the upper level, one on each side of the ticketing counters. One is TSA PreCheck, the other is not (yes, entirely 1/2 of the locations they have available are TSA PreCheck, and there are always lines at the other side). The signage is very poor and many, many people end up going to the PreCheck side, get turned away, and then need to walk 10 minutes to the other side of the airport to go through the regular lane. Of course this could be avoided if you enroll in that program, but for people who travel by plane infrequently, the cost/benefit ratio just isn't there.