DCA security lines have been very long lately--upwards of 30 minutes at the times I've flown. I usually fly US Airways out of the C pier and missed my flight last week because I was stuck in security and didn't bother to show up until 45 minutes before flight time. Yes, it was my fault for not getting to the airport earlier, but I never had that much of a problem at DCA before.

As for the registered traveller program at the AA gates, didn't you have to be invited to participate?