I paid for tsa pre-check then have to tear apart m...

I paid for tsa pre-check then have to tear apart my bag and wait in line to have my computer and liquids scanned... that's why I did the freaking pre-check process. There were a bunch of us with pre-check, let's be real here, why was our lane closed when it was still busy? There's a long line, and everyone is wAiting, the airport is definitely making money, use it to pay for tsa staff!