Flying DCA-MKE on YX Tuesday, but the flight cancels due to wx in MKE. So I run over to Concourse B and buy a walk-up ticket to ORD on UA. In the process, I earn a SSSS boarding pass.

During the secondary screening, one of the TSA guys checks out the 3-oz. bottle of Clear Care contact cleaning solution in my 1-quart plastic bag. He unscrews the cap and, noting the red tip on the bottle, calls over a supervisor who informs me that any solution that cannot actually be used directly in the eye cannot be brought into the cabin.

Clear Care and AoSept are hydrogen peroxide-based products that are used along with a small cup and disk that disinfect lenses and turn the solution into saline after six hours. The Supervisor told me that DCA TSA staff had been briefed on this type of product that very morning and that this ban has been in effect for several months.

I've done my usual 100k+ miles this year, albeit with only a handful of secondary screenings, but this ban was news to me. I understand that very strong concentrations of H2O2 can used to mix a bomb. Has anyone else heard about this particular prohibition?

Not looking for any angry rants about civil rights, TSA, or the GWOT. Just curious about contact lens solution.