After 15 years as California's equine medical director, Dr. Rick Arthur has stepped away from the post. A vocal proponent of tightened welfare practices in the sport, Arthur has spearheaded during his tenure a slew of equine safety reforms that have made California arguably the most stringent regulatory environment in the States. Arthur's forthrightness, however, has led to him staking out positions that have at times proven polarizing. The day after Arthur officially stepped down, he conducted a Q&A with the TDN, the first part of which can be seen...