Originally Posted by DevilDog438

I stopped using zip-ties after being threatened with arrest by the BWI FSD a few months ago due to my electrician's scissors (he saw me clipping a couple of the zip-ties and went on a tirade about them until the MdTA cop told him he wouldn't arrest me for having an object that just went through screening and was cleared by TSA).

I found some non-TSA small Master Lock combination locks that have shanks long enough to permit me to close just about every compartment on both my roller and backpack. I also bought a small rigid first-aid kit which, when emptied, is just big enough for all of my credentials, passport, cash and car keys. This gets double locked and buried in a bottom section of my backpack immediately after I go through the TDC.