Gus Hall (born Arvo Kustaa Halberg; October 8, 1910 – October 13, 2000) was a leader and chairman of the Communist Party USA (CPUSA) and its four-time U.S. presidential candidate.
 As a labor leader, Hall was closely associated with the so-called "Little Steel" Strike of 1937, an effort to unionize the nation's smaller, regional steel manufacturers.
 During the Second Red Scare, Hall was indicted under the Smith Act and was sentenced to eight years in prison.
 After his release, Hall led the CPUSA for over 40 years, often taking an orthodox Marxist–Leninist stance.
McCarthyism is the practice of making accusations of subversion or treason without proper regard for evidence.
 The term refers to U.S. Senator Joseph McCarthy and has its origins in the period in the United States known as the Second Red Scare, lasting roughly from 1947 to 1956 and characterized by heightened political repression as well as a campaign spreading fear of influence on American institutions and of espionage by Soviet agents.
The lavender scare refers to a witch hunt and the mass firings of gay people in the 1950s from the United States government.
 It paralleled the anti-communist campaign known as McCarthyism and the Second Red Scare.
 Gay men and lesbians were said to be security risks and communist sympathizers, which led to the call to remove them from state employment.
"Card-carrying communist" is a term popularised during the Second Red Scare as a label for members of communist and far-left organisations, especially the US Communist Party.
 The term is still considered derogatory when used in its Cold War context.
The Florida Legislative Investigation Committee (also known as the Johns Committee) was established by the Florida Legislature in 1956, during the era of the Second Red Scare and the Lavender Scare.
 Like the more famous anti-Communist investigative committees of the McCarthy period in the United States Congress, the Florida committee undertook a wide-ranging investigation of potentially subversive activities by academics, Civil Rights Movement groups, and suspected communist organizations, and also attempted to eliminate homosexuals from state government and public education.
A "Red Scare" is promotion of widespread fear by a society or state about a potential rise of communism, anarchism, or radical leftism.
 The term is most often used to refer to two periods in the history of the United States with this name.
 The First Red Scare, which occurred immediately after World War I, revolved around a perceived threat from the American labor movement, anarchist revolution and political radicalism.
 The Second Red Scare, which occurred immediately after World War II, was preoccupied with perceived national or foreign communists infiltrating or subverting U.S. society or the federal government.
Gibson v. Florida Legislative Investigation Committee
Red-baiting, also reductio ad Stalinum, is an informal logical fallacy that intends to discredit the validity of an opponent's logical argument by accusing, denouncing, attacking or persecuting an individual or group as communist, socialist, or anarchist, or sympathetic toward communism, socialism, or anarchism.
 In the United States the term "red-baiting" dates from at least 1927.
 In 1928, black-listing by the Daughters of the American Revolution was characterized as a "red-baiting relic".
 It is a term commonly used in the United States, and in United States history, red-baiting is most often associated with McCarthyism, which originated in the two historic Red Scare periods of the 1920s (First Red Scare) and 1950s (Second Red Scare).
 In the 21st century, red-baiting does not have quite the same effect it previously did due to the fall of Soviet-style Communism, but some pundits have argued that notable events in current American politics indicate a resurgence of red-baiting consistent with the 1950s.
The Aircraft Accident Investigation Committee of Thailand (AAIC, Thai: คณะกรรมการสอบสวนกรณีอันเกี่ยวกับอุบัติเหตุของอากาศยานในราชอาณาจักร ) is the aircraft accident and incident investigation committee of Thailand.
 It is subordinate to the Flight Standards Bureau, Department of Civil Aviation, Ministry of Transport.
Homosexuality and Citizenship in Florida, also known as the Purple Pamphlet, was published in January 1964 by the Florida Legislative Investigation Committee of the Florida legislature led by Senator Charley Johns.
 The booklet contained several pornographic images and a glossary of terminology used in the gay community.
 It was sold for 25 cents a copy, with a discount for bulk orders of 100 copies or more.

Question: Who created the practice in which the Florida Legislative Investigation Committee used during the era of the Second Red Scare?
Answer: Joseph McCarthy