It depends if I am taking slides or using the 10D. With slides of course I'm much more selective when taking the shots. My process goes something like this.
1) I scan all the slides into the PC
, and select which ones, at first glance, are of A-net potential. i.e. interesting angle, good quality, etc. For Slides it maybe around 30% of what I shot. For Digital maybe 15%.
2) I'll process all the selected pictures and get them as good as I can and ready for upload. I might drop 25% of the initial selection at this point, because in processing I discover some problem and I can't get a good result.
3) I'll open A-net and check what has been previously uploaded for each registration that I have prepared. If someone else has loaded an almost identical picture, or I have, from the same airport, I'll dump it unless there is a particular reason, like my new photo is of better quality than the one already there. Take another 10 or 15% off the selection.
4) Set up my info file and upload.
So all in all, I end up uploading about 20% of what I shot for slides, and around 10% of what I shot on digital.
I have a rejection rate that probably runs around 2 or 3%
The only thing you should feel when shooting a terrorist: Recoil.