An Air Force hero was honored on Wednesday more than two decades after he was killed in action.  Master Sgt. John “Chappy” Chapman was honored with a detailed plaque carved from black granite at the Mount Soledad National Veterans Memorial in San Diego, Calif.  In 2018, Chapman became the first airman to be awarded the Medal of Honor since Vietnam for his bravery and valor in Afghanistan. Serving with a Navy SEAL team, Chapman was killed in the Battle of Takur Ghar on March 4, 2002, during a