As often as I get singled out for extra special attention at airport security checkpoints, is it reasonable to wonder if it's because of the anti-TSA and anti-surveillance posts I've written on this blog? Seriously, the frequency is unlikely enough to make random chance an obvious explanation.
I continue to assert that the excessive security theater at airports is a violation of the 4th Amendment. Perhaps it's time to be honest with ourselves, admit the Constitution is no longer in force, and rename much of our law enforcement apparatus for what it really is: the Directorate of Internal Security.
Update, 8:27 am: I was just called up, by name, to the ticket counter. They said they had to check my passport again, even though I've already gone through airport security and US Customs here at the Vancouver Airport. The unhelpful agent also said she'd need to see my passport yet *again* when boarding, and refused to explain why this was the case.
Update #2: I did eventually get on the plane in Vancouver and make it to Seattle. Alaska prints an "all in one" boarding pass rather than one for each flight--and the barcode on mine, which worked just fine in Vancouver, wouldn't scan in Seattle. I thought for sure I was going to be searched again--you know, because I look kinda terrorist-y--but the agent typed my confirmation code in and I was allowed to get on board.