My response about grammar was deleted as well. As an ESL traveller who often struggles with regional American accents, and who has felt the wrath of TSOs for not understanding, I am seriously concerned about the lack of ability of TSOs to communicate effectively. In Germany (as in many countries around the world) security screeners must speak a minimum of two languages; many have three. Regional dialects are frowned upon in the course of duty; I may get a touch of Bayrisch with the greeting but I doubt that a screener having a full conversation with a non-Bayrisch speaker would be acceptable. I believe that my command of written and spoken English is excellent, but I still struggle with certain accents, such as the time at JAX I finally had to admit 'I have no idea what you just said to me' after I asked a screener three times to please repeat herself. Language skills do matter. If I had not witnessed (and been the target of) retaliation towards 'non-English speakers' by TSA, I would not feel so strongly.