Nov 8, LAX T4, the screener told me she believes they no longer accept these cards. I questioned that, as they are brand new (well relatively new). Her supervisor came over and he seemed unsure as to whether or not they were acceptable. I told him they were a government issued ID and they should be perfectly acceptable. He told me that the training changes all the time and he doesn't know if they can still be used. I finally showed him my passport in frustration.