[QUOTE=TXagogo;15023589]I have had several encounters at my home airport (DFW) whereby the agent in the security line takes the boarding pass and ID and then asks "what is your name?" [QUOTE]

Just look ery lost and say "¿Qué?"

As far as I know, the ability to speak or understand English is not a requirement to fly unless you sit in an exit row. This answer might work better in a non southern border state where the TDC might happen to know Spanish.