As the power of the president's office grew over the nineteenth and twentieth centuries, presidents attempted more frequently to use executive privilege to shield themselves and their subordinate officials from investigation. In 1836, for …show more content…
EISENHOWER, executive privilege underwent three major developments. First, in the area of national security, the Supreme Court ruled in United States v. Reynolds, 345 U.S. 1, 73 S. Ct. 528, 97 L. Ed. 727 (1953), that the military may refuse to divulge requested information when national security is at stake. While warning that such requests could not be simply left to the "caprice of executive officers," the Court maintained that there would be times when "there is a reasonable danger that the compulsion of the evidence will expose military matters which, in the interest of national security, should not be divulged."
The second development in the use of executive privilege became known as the candid interchange doctrine. In an attempt to shield the executive branch from the bullying investigative tactics of Senator JOSEPH R. MCCARTHY, President Eisenhower directed that executive privilege be applied to all communications and conversations between executive branch employees; without the assurance of confidentiality, he claimed, they could not be completely candid. This doctrine marked a tremendous change in the scope of executive privilege, extending it from the president and the president's top advisers to the myriad offices and agencies that make up the executive