I should be tidier
I ditched the old laptop bag and got a new one. Much better. The new one is roomier on the inside than outside — and just as dangerous to aircraft security. Things end up in it that I don't know about. During my first two trips with the new bag, I have already brought several dangerous materials undetected through security checkpoints: dangerous liquids (an orange, a large bottle of hair conditioner), a sharp knife and of course something explosive.