mike_s
Contributor
Here is the rule from the TSA Website
Hidden items such as body piercings may result in your being directed to additional screening for a pat-down inspection. If selected for additional screening, you may ask to remove your body piercing in private as an alternative to the pat-down search.
also...
You may be additionally screened because of hidden items such as body piercings, which alarmed the metal detector. If you are selected for additional screening, you may ask to remove your body piercing in private as an alternative to a pat-down search.
source TSA: Travel Assistant
Hidden items such as body piercings may result in your being directed to additional screening for a pat-down inspection. If selected for additional screening, you may ask to remove your body piercing in private as an alternative to the pat-down search.
also...
You may be additionally screened because of hidden items such as body piercings, which alarmed the metal detector. If you are selected for additional screening, you may ask to remove your body piercing in private as an alternative to a pat-down search.
source TSA: Travel Assistant