Atticus represents hope, he is optimist.

Frank Baldwin and Diane and Michael Jones, America’s Rented Troops: South Koreans in Vietnam (Philadelphia: American Friends Service Committee, 1973), cited in Noam Chomsky and Edward S. Herman, The Political Economy of Human Rights 1: The Washington Connection and Third World Fascism (Boston: South End Press, 1979), p. 321.

The 18th century left a heritage of optimism about man's possibilities and perfectability.

Critics of the war might offer a different set of goals: (1) beyond thanking veterans, to discuss whether the war itself was necessary or honorable; (2) in regard to the Armed Forces, to examine the debilitating effects of U.S. aerial assaults, ground operations, and counterinsurgency doctrine, especially on civilians; (3) on the home front, to recognize the contributions of those who opposed the war as patriotic and honorable; (4) with respect to science and technology, to examine the environmental and human devastation wrought by high-tech weaponry and poisons such as Agent Orange, and to reassess the slavish dependence on statistical benchmarks that obscured the inhumanity of the war; and (5) to recognize that America’s most important allies did not support the war and that the United Nations and other nations strongly advised against it. Such goals would likely produce sobering lessons that would strengthen efforts to prevent future wars.

Trump's Israel Visit — Hope and Optimism | National Review

In most cases, this failure is caused by over-optimism by the project management team.

Johnson’s deception was nearly undermined by his vice-presidential running mate, Hubert Humphrey. On August 4, Johnson complained angrily to his friend and campaign adviser, James Rowe, that Humphrey had been telling the truth about the Gulf of Tonkin incident to the media, jeopardizing the administration’s claim that the attack on the Maddox was unprovoked. Johnson’s outburst was recorded on the White House taping system:

The Uses and Abuses of Optimism and Pessimism

In another mission from May 10-20, 1969, U.S. and ARVN troops fought an intense, uphill battle (literally) for Hill 937, or “Hamburger Hill,” near the Laotian border. The U.S.-ARVN forces succeeded in taking the hill, with significant casualties, but since no territory in the countryside could be permanently retained without sizable forces present, the hill was quietly abandoned on June 5. Two weeks later, military intelligence reported that more than 1,000 North Vietnamese Army troops had moved back into the area. In Washington, Senator Edward Kennedy of Massachusetts asked on the Senate floor, “How can we justify sending our boys against a hill a dozen times, finally taking it, and then withdrawing a week later?”

Optimism & Pessimism - Our World in Data

The story that was heard in the U.S., however, was that of Douglas Pike, an employee of the U.S. Information Agency, who blamed the civilian deaths entirely on the insurgents and warned that more massacres could be expected should South Vietnam fall to the communists. His story was spread by U.S. agencies and the American Friends of Vietnam, which issued a pamphlet in June 1969 warning that the “massacres at Hue … were only the most outrageous in a long history of such Communist atrocities.” Excerpts of Pike’s story also appeared in Reader’s Digest (September 1970) in part to counter revelations of American atrocities at My Lai. Writing forty years later, the American military historian James Willbanks concludes:

Optimism about the future of the next ..

The United States Air Force dropped in Indochina, from 1964 to August 15, 1973, a total of 6,162,000 tons of bombs and other ordnance. U.S. Navy and Marine Corps aircraft expended another 1,500,000 tons in Southeast Asia. This tonnage far exceeded that expended in World War II – 1,613,000 tons in the European Theater and 537,000 tons in the Pacific Theater.