What's the difference between a bag being screened (ie, dug through and messed up) by TSA and by the airline? Is there a difference?

Recently, I flew OKA-KIX-SFO-AUS... And somewhere after rechecking for SFO-AUS, my bag was screened. It didn't have one of the "you have just been raped by TSA" fliers, but it did have a sticker on it saying something to the extent of "UNITED security screening"..

Here is why I want to know -

I can understand that the industry feels the need to manually examine bags from time to time, but I really hate when they mess things up and don't even try to fix them. I can handle unfolded shirts or a pile of socks being moved a few inches.......but in my recent screening, that didnt happen. All of the clothing was paclked just how I left it. My shoes were arranged the same way on the side pocked. However, the small front pocket where I put my ammenities? JACKED THE HECK UP.

They took my razors out of the carrying case. They took the blade holder off of the razor holder. They took the cap off of my shaving cream. They took the cap off my cologne. They took my bottle of hair product out of the plastic baggy specificcaly used so that it wouldnt spill everywhere. They basically completely messed with everything in my little pocked, leaving every possible thing that could be detached detached .. and uncapped.. and unbagged. It was a mess.

What the heck. I really want to use words other than heck, but I think I am not allowed... Grrr..

So. Who do I complain to.. UA? or TSA?