I travel with CS in a Grolsch beer bottle and my carry-on was searched 
because the metal lock on the top of the bottle was suspicious on X-Ray.  When 
she 
found it in the bag I just told her it was colloidal silver and she let me go.  
This was a screening for a cruise ship and with the recent Norwalk virus on 
ships, I need it more then when I'm home.  I now pack the CS in my luggage to 
avoid problems at the pier.  

Dotsie