I can't imagine the inconvenience this will cause - not being able to bring bags with books, DVDs, etc. I mean, nothing like being able to bring aboard the contents of my purse without the purse.
I know when we travel, my kids bring backpacks with all their activities for the flight, including their DVD players, DVDs, toys. I couldn't imagine not being allowed to carry that on.
Of course there is a need for security, and this is a very scary situation. However, sometimes it borders on the absurd and I hope it's modified soon.