UPS and FedEx have grounded a fleet of cargo planes "out of an abundance of caution and in the interest of safety" following a deadly crash in Kentucky.A McDonnell Douglas MD-11 plane bound for Honolulu crashed near UPS Worldport in Louisville on Tuesday evening, killing 14 people, including the three pilots. Authorities said the MD-11, built in 1991, was carrying 38,000 gallons of fuel at the time of the crash, which impacted two buildings, with images from the scene showing large fires burning and smoke b ...