There Are Approximately 28 Million Deaf, Hard Of Hearing, And Deafened People In The Us, According To Gallaudet University, And Although Not All Of Them Speak American Sign Language (Asl), A Visual-Spatial Language That Is Used By The Deaf Community In The United States (And English-Speaking Parts Of Canada), The Number Of Them Who Do Make Asl The Fourth Most Commonly Used Language In The Country!