SEATTLE – A Coast Guard HH-52 Seaguard helicopter, which was restored by current and retired Coast Guard members, will be unveiled at the Boeing Museum of Flight, in Seattle, on Saturday at 11 a.m. The unveiling will occur in conjunction with the Seattle-area American Heroes Air Show.  For more information on the air show, go to http://www.museumofflight.org/press/helicopters-fly-american-heroes-air-show-june-18. Rear...