TAMPA, Fla. — The Coast Guard is scheduled to posthumously present two World War I Purple Heart Medals Thursday, at 9 a.m., during a ceremony at the Tampa History Center. Coast Guard Capt. Michael Kahle, commander of Sector St. Petersburg, will present the medals to the families of Angus Nelson MacLean and James Frost who lost their lives during the sinking of the Coast Guard Cutter Tampa. MacLean...