The screening was there on 9/11/01 and it didn't stop anything (of course it wasn't TSA then, but with the exception of shoe carnival and grope-a-thon there was little difference). And between 9/12/01 and whenever shoe carnival started there were no incidents in the US (Richard Reid boarded at CDG). And between 9/12/01 and the beginning of grope-a-thon there were no incidents. And we know from media reports that weapons are getting through anyway. Yes, taking shoe carnival and grop-a-thon and pointy pointy no no away will introduce anarchy and nonstop terror.