I suspect many people have started to get info fatigue from all the terrorism coverage, but I'm adding to it in the hopes that a positive and technologically interesting story might improve the situation.
Long before 9/11, the Lockerbie bombing got safety agencies thinking about new precautionary measures. The FAA set some standards for certifying bomb proof luggage carriers. Researchers at Delft University of Technology Structures & Materials Laboratory came up with a material called GLARE, for glass reinforced. This is a laminated material composed of aluminum, fiberglass, and adhesives. As the article describes, this is quite resistant to explosive force and fire.
I think this might be a more effective approach to aircraft security than bag inspection programs. Inspection always requires humans. They are fallible or may be corrupted. Bag inspection machines and procedures are expensive. The technology itself costs money, but it also costs time. When bag matching comes into full effect, the number of delayed, cancelled, and missed flights will increase. Though this cost isn't paid directly, it will be felt by all concerned.
By contrast, if a bag is on the plane, it is in the container. There is less opportunity for human failure or malice here. It will also protect against explosives that may not be detected by current machines. Continuously updating detectors will be costly, and will probably lag behind technology to conceal the explosives.
Obviously, no security technology will be foolproof. However, simpler measures with less human interaction should be more stable. I hope that advances like GLARE will improve overall security at a reduced cost in time and money. This technology is not as visible as lots of new screeners, machines, and National Guardsmen. Politicians like grand public gestures. I'm just afraid that a more subtle approach may be overlooked in the rush to be the first congressman on the block to be the toughest on terror.