About three million people in the United States, including a presidential candidate, find they sometimes stutter.It is a condition that causes people to repeat the beginning sound of words, or whole words while speaking.At times, they even have trouble saying a word.People who stutter know exactly what they would like to say but have trouble producing a normal flow of speech,making it difficult to communicate with others.Arthur Blank is the owner of the Falcons, an American football team in Atlanta, Georgia.He stutters. Other members of his family also stutter.Blank said, "Defining communication by how fluent you are doesn't get at the freedom ―the freeing of the inner person, the inner soul, the inner spirit, the inner mind, the intellect of what each person has to say and feel."Last week, he gave the University of Texas at Austin $20 million to create a new center for research and education into stuttering.It is called the Arthur M. Blank Center for Stuttering Research and Education.Courtney Byrd, a professor of speech, language and hearing sciences at the university, will lead the center.