[periodontal]

If the extra initial scrutiny is perceived to streamline the process and avoid further hassles, many will hand it over without giving it a second thought.

For example, many people have voluntarily submitted fingerprints in order to enroll in TSA's PreCheck.

[chrisfosterelli]

That's a very good example, but on the other hand fingerprints aren't likely to accidentally "incriminate" you.

Coming into the USA, if I saw that on a form my first instinct would be that not providing it reduces the risk of accidentally getting flagged for something ridiculous. I'd hate to be pulled aside for extra screening because a tweet from 6 years ago included the word 'explosion' in it.