Hey, FG. I hope you have been well. It's all of them. The thought is US PS has to obtain a search warrant to open a package, technically true domestically under normal circumstance. But on both domestic and international packs coming through US PS they can turn their intel over to C B pee / the homeland and they can circumvent a warrant in the interest of "national security". The colors are now more than ever cooperating with that alphabet soup because of the heavy fines they are being hit with, some public already, some not yet. But my rule of thumb has worked very well for me once I learned the hard way back in the day and ending up being lucky enough to have some friends who were able to tell me some of the intel on purple and US PS. They tell me it is prudent to give it a good few days after you really think pack should really be there based on past delivery experience and then check TN once... it will normally tell you all you need to know. Pack is coming or LL is coming. Just from my own past experience and the whispers in my ear. Of course if it is your first interaction with a particular vendor, common sense dictates that you check with others who have used that vendor to get a handle on approx. delivery times. Then if it were me, I would give a week after what you hear is normal before checking a TN. If nothing contact vendor, if moving... great, if stuck in a particular location, LL likely. Have a good one. S-