Heather Penney
Heather Renee Penney is a defense policy expert at the Mitchell Institute for Aerospace Studies in Arlington, Virginia. She is best known for her role as a USAF lieutenant who was one of two F-16 pilots who flew their unarmed planes in an attempt to ram and down United Airlines Flight 93 before it reached Washington, D.C., during the September 11, 2001, terrorist attacks.