ASL; American Sign Language ; Deafhood; Deaf culture; Gehörlosenkultur; Deaf studies; Language and culture (sign language) ; Behindertendiskriminierung; Discrimination of the handicapped; Audismus; Audism; Ableism ; Discrimination, social ; Barrierefreiheit; Communication access; Communication barrier; Exklusion (Soziolinguistik) ; Exclusion (sociolinguistics) ; No Child Left Behind Act; Inclusion/Exclusion (sociolinguistics) ; Language rights; Minderheitenrechte; Grundrechte; Base right; Pressefreiheit; Charta der Regional- und Minderheitssprachen in Europa; Universal Declaration of Linguistic Rights; Human rights ; Xenophobia; Fremdenfeindlichkeit; Racism