California Senator Dianne Feinstein issued a letter Wednesday to The Stronach Group (TSG), which owns Golden Gate Fields, requesting answers to the reasons behind the planned closure of the track at the end of the year, and the impacts from the company's decision on other industry sectors. Since TSG announced on July 15 with a short statement light on detail the closure of Golden Gate Fields--a momentous decision that figures to upend a way of life for many in California--the company has remained publicly mum when pressed about the decision....