Security and clear plastic cups
Just got this email from the Port of Seattle:
"Clear Cups Don't Clear Security
Got a yearning for a FrappuccinoŽ or an iced chai? If you're planning to go through the security checkpoint, ask your barista to serve it up in a paper or Styrofoam cup or wait to you're in the gate area to purchase your beverage. Clear plastic cups are not allowed through security. Drinks in solid plastic, metal or glass are allowed if they are in spill-proof containers that can be placed on the x-ray conveyer"
Clear plastic cups? Does anyone know what this is about?