I have been harping on this for a while and on here a few months ago. I believe stuff is being taken at Sea-Tac as well out of unlocked suit cases and some PAX never realize it - mostly by Delta staff. I sure wish they would monitor some of these pathetic thugs. I am sure it is only a few but still. Because most PAX no longer lock their bags anymore they are easy pry. Make sure you itemize even the smallest item because the missing item will probably be something you later foget about.