Another Myth DeMythified

All this talk about boxcutters from the government when they've known all along no boxcutters were involved. The hijackers had Mace and knives. I don't believe knives were approved for travel before 9-11, were they? At least, I remember a fellow ahead of me in line for a flight out of Indianapolis who was called aside because he carried one on his belt. This was a week or two before 9-11.