Paul Saffo forwards comments from a senior carrier pilot on the airport security morass:

In consideration of the change in flight crew procedural response, armed pilots, air marshalls, and especially the reinforced flight deck door, there is no reason to screen passengers for anything other than explosives, and we do not have the effective means to do that. Screening for nail clippers, scissors, and any other portable implements including guns is meaningless

We in Madison are generally fortunate that the security lines at MSN are nothing like those at SFO, LAX, CVG, LGA (Friday night!) or other major airports.