After 12 horses suffered fatal injuries at Churchill Downs in the last five weeks, prompting the Louisville track to announce new safety initiatives Thursday, the Horseracing Integrity and Safety Authority (HISA) issued an update on the situation. The HISA statement appears below in its entirety: Over the past several days, the Horseracing Integrity and Safety Authority (HISA) has undertaken multiple measures to better understand the circumstances surrounding the recent spate of equine fatalities at Churchill Downs in hopes of working with the Kentucky Horse Racing Commission (KHRC) and Churchill Downs...