Comment by defrost

To address all the questions you addressed to me.

> Isn’t that what the scanners are for?

Err, not that I know of, I generally use the OED to look up the various recorded uses of words.

> To find large metallic objects?

The OED is for finding words, "scanners" that I've used or made are for mapping background geological structures via seismic waves, gravitational waves, magnetic waves, gamma waves. Medical scanners I've worked with have generally not bee used for finding large metallic objects and some should not be used if a patient has large metal objects attached or within.

> Why do you need additional “random” screenings behind that?

In 40+ years of scanning things there's not been a single time I've needed an additioan "random" scan - a few times scans have been repeated due to various failures to save data.

> Or are you saying the scanners don’t work to find even obvious weapons?

In the comment you responded to I said that it is not unreasonable to think that a Sikh you meet, anywhere, might be carrying a knife, a comb, a bracelet, etc. I did not mention anything about scanners. No, seriously, go and recheck the comment.

> If so, we should get rid of the scanners.

We? All scanners? Okay, well, thanks for sharing that opinion.

I figure various groups of scanner users will want to keep using them, of course. I personally am in favour of scanners for exploration and medical work.