Hal Davis is a distinguished US Marine (Ret.) with a career that spanned twenty-two years. In his heart, service is for a lifetime. He grew up in Knoxville Tennessee, and life back then was never easy. Deprived of all the good things that a childhood normally brings, he remained steadfast in reaching his goals. He became a Tennessee State Trooper, FBI Special Investigator, United States Secret Service Agent to two US presidents (Nixon and Ford),...