To be EXTREMELY CLEAR: I do not really know the applicable laws or really have a great understanding of security in general, I am a Physician not an expert in the Security Industry.
Recently, my Dad was going through a TSA checkpoint and TSA decided to take issue with a prescribed liquid medication.
The employee asked my Father when his last meal was and my Father honestly said my Wife and I ate lunch before going to the airport. The employee said the label says take 1 hour before breakfast, lunch and dinner and as you had lunch before coming to the airport and the flight is short, about an hour and landing well before dinner you can check this medication.
My Dad said I was under the impression that Prescribed Medication is exempt from the liquids band thus I could have it with me, in case my flight is delayed, etc. The TSA employee said that he had ultimate authority with regards to exemptions and he was not exempting this item.
My Dad is a Physician himself and said to the TSA Employee did you take a Residency in Gastroenterology prior to working for TSA as my Gastroenterologist felt I need this medication? The Agent said my Dad should not joke about security and he did not need a residency in medicine to know what is a necessitated exemption and what is not.
Ultimately a Supervisor was called and he did allow the Medication through, but does any TSA Employee, FSD or mere peon have the right to practice medicine without a license? Which is essentially what that TSA Employee did do, IMHO.