[CJ Wolf]

"Never mind box cutters, how did the terrorists smuggle knock-out gas onto that flight?" you carry the ammonia, I'll carry the bleach, ok? (no wonder they are suspicious about liquids now)

[all4one]

I flew recently and had shampoo, hairspray, cologne, shaving cream etc. in carry-on. Would not be too difficult to disguise mace or any other chemical as common toiletries.