Federal investigators are holding ongoing NTSB hearings into a UPS cargo jet crash in Louisville. The multi party investigation includes testimony from UPS, Boeing, the FAA, and families of victims. Proceedings are focused on causes of the accident, safety procedures, and oversight of cargo operations. For investors following United Parcel Service (NYSE:UPS), the hearings come at a time when the stock trades around $98.87 and has declined 7.7% over the past 30 days and 31.6% over 3 years...