I watched the news with interest this week, since I used to fly a lot, and they showed how liquid explosives can be a clear liquid. Apparently even small amounts are deadly. I know there are probably chemists on this board, and my info is just what I get on the news and it would be great to have their input. Personally, if I was still flying I would cheerfully give up any of the things they ask if there was any risk at all! I'm sure that they realized how this was going to disrupt travel, that they would catch a LOT of flack, and I'm inclined to think that these controls were not implemented on a whim, but that there truly is a risk. How many people complain after a disaster or crash that more should have been done?