A cupcake isn't always just a cupcake. Sometimes it's so noteworthy, it creates Cupcakegate. Just ask the nation's airport security officials.

Travelers carrying a "normal" cupcake will probably clear airport security, although additional screening may be required, according to a Transportation Security Administration blog post defending the agency's recent confiscation of a cupcake. The post, titled "Cupcakegate" was published Monday and promised to be "short and sweet."

As communications professor Rebecca Hains learned last month, an unorthodox cupcake in a jar may violate U.S. Transportation Security Administration carry-on limits on liquids and gels, warns TSA's official blogger. At least sometimes.

Hains tried to carry a cupcake in a Mason jar, packaged that way by the bakery for easy shipping, through airport security on the way home from a holiday trip.

Read - TSA defends cupcake confiscation

Previously - The TSA won't swipe your pie – but will they take the cake?