"Prohibited items." Not sure why this was downvoted. It is literally how the TSA refers to them on its site and answers the parent's question: https://www.tsa.

"Prohibited items." Not sure why this was downvoted. It is literally how the TSA refers to them on its site and answers the parent's question: https://www.tsa.gov/travel/civil-enforcement https://www.tsa.gov/travel/civil-enforcement Save your downvotes for the TSA.