According to www.tsa.gov, it makes no mention of not being able to choose the gender of your screener.
If you must go through additional screening, the screener will direct you from the metal detector to a screening station where he or she will brief you on the next steps.
- Except in extraordinary circumstances, a screener of your gender will conduct your additional screening. You may request that your search be conducted in private.
I dunno. There seems to be some gray area here but I’d personally prefer to be felt up by someone of the opposite sex. If there’s a reaction, consider it a compliment.
Obviously, TSA doesn’t want to put their employees in an uncomfortable position, but it’s okay for them to do so to the taxpaying public. See how that works?