Bruce, I don't take this sort of project around with me: it's too fiddly, requires a certain amount of attention and the bits would get lost. I do have travel knitting, usually a pair of socks, which I take most places. For the socks I use a set of five wooden needles which are about five inches long and less than 1/8 inch or so in diameter. I have not yet had any trouble knitting at airports or on planes (sometimes I'm asked to put it away during take-off or landing). If asked I'd take the needles out of the project and submit them for confiscation without argument, even though I reckon they're less dangerous then a fine-point biro. After all, security is only doing their job, and this sort of thing seems to be (anecdotally) at the discretion of the security personnel to a certain extent.
This is a birthday present for a friend of mine with a significant birthday this weekend who provides office services ...
Sent by thought transference