The Second Red Scare and Anti-Communist Propaganda

Fears intensified due to the "Loss of China" to Communism in 1949, the Soviet Union's first successful atomic bomb test in August 1949, and the outbreak of the Korean War in 1950.

To root out internal threats, Truman established the Federal Employee Loyalty Program (FELP) in March 1947 via Executive Order 9835.

• Over 5 million federal workers were investigated by loyalty boards between 1947 and 1956.
• Roughly 2,700 to 3,000 employees were dismissed as security risks.
• Between 12,000 and 15,000 resigned to avoid the stigma of investigation.

The FBI, under Director J. Edgar Hoover, drove much of this pursuit. Expanding from 3,500 agents in 1946 to over 7,000 by 1952, Hoover compiled secret files on thousands of citizens. He deliberately leaked information to friendly journalists to target suspected communists and any Fellow Traveler who sympathised with them.

Anti-Communist Propaganda and Media Campaigns

Entertainment is rarely just for fun, especially when a government wants to shape national identity. To secure public support for the Cold War, authorities needed to clearly define Americanism as the direct opposite of Soviet Communism.

The most significant effort was the Freedom Train campaign (1947–1949). Conceived by Attorney General Tom Clark and backed by President Truman, it was a traveling museum designed to spark a "National Rededication" to US values.

• To avoid looking like direct state propaganda, it was managed by a private non-profit, the American Heritage Foundation, funded by business and advertising leaders.
• The train visited over 300 cities, showcasing 133 original documents, including the Declaration of Independence and the Truman Doctrine.
• It served as an exercise in Soft Power. Truman mandated the train be desegregated, skipping stops in Birmingham and Memphis when local officials refused integrated viewing, thereby contrasting American "freedom" with communist "oppression".
• The tour reached 3.5 million physical visitors, while 50 million participated in local Rededication Weeks featuring parades and patriotic rallies.

Popular media actively mirrored these government campaigns. The 1948 cartoon Make Mine Freedom promoted capitalism while demonizing foreign ideologies. In 1954, Captain America comics were relaunched with the subtitle "Commie Smasher". Even children were targeted with comic books like Is This Tomorrow: America Under Communism! (1947), which depicted a violent takeover of the USA.

HUAC, Blacklisting, and Civil Liberties

You have the right to remain silent, but doing so in the late 1940s could cost you your livelihood and your freedom. The House Un-American Activities Committee (HUAC) became a permanent congressional committee in 1945 and served as the primary vehicle for public anti-communist hearings.

HUAC famously investigated Hollywood in 1947. Ten directors and writers—the Hollywood Ten—refused to answer questions about their political affiliations, citing their First Amendment right to free speech. The government rejected this defence, jailing them for one year for "contempt of Congress".

This led directly to the practice of Blacklisting.

• Over 300 writers, actors, and directors were denied employment in the film industry for over a decade.
• Across the country, approximately 600 teachers lost their jobs for refusing to sign Loyalty Oaths.
• Trade union membership plummeted as unions were aggressively branded as communist fronts.

This created a profound "chilling effect" across America. Citizens avoided discussing civil rights or joining labour unions out of fear of being labelled "un-American".

Espionage: Hiss and the Rosenbergs

While a climate of fear can make people see ghosts, sometimes the monsters are entirely real. The hysteria of the Red Scare was anchored in genuine, verifiable instances of Espionage.

In 1948, high-ranking State Department official Alger Hiss was accused of being a Soviet spy. Pursued relentlessly by HUAC member Richard Nixon, Hiss was eventually convicted of perjury in 1950 and imprisoned. For many Americans, this proved that communist agents had infiltrated the highest levels of the US government.

The most infamous case involved Julius and Ethel Rosenberg, arrested in 1950. They were accused of heading a spy ring that passed atomic bomb secrets from Los Alamos to the Soviet Union.

• In 1951, Judge Irving Kaufman sentenced them to death, famously declaring their crime was "worse than murder".
• They were executed via the electric chair on 19 June 1953.
• Later evidence (such as decrypted Soviet cables from the Venona Project) confirmed Julius was indeed an active spy. However, the evidence against Ethel was incredibly weak, and modern consensus suggests she was merely used as leverage to force a confession from her husband.

Evaluating the Red Scare: Security vs Hysteria

When assessing the Red Scare, historians must weigh the genuine threat of Soviet infiltration against the widespread erosion of civil liberties.

Arguments for Actual Threat (Security)

• The Venona Project confirmed that Soviet spy rings had successfully infiltrated the Manhattan Project.
• The USSR tested an atomic bomb in 1949, years earlier than US intelligence expected, strongly suggesting high-level leaks.
• Julius Rosenberg was an active courier for the Soviets.

Arguments for Disproportionate Reaction (Hysteria)

• Over 5 million federal workers were investigated to find a very small number of actual threats.
• Ethel Rosenberg was executed with scant evidence; the death penalty was extreme compared to the 30-year sentence given to their actual spy handler.
• The Hollywood Ten and thousands of ordinary workers lost their livelihoods based on association rather than criminal action.

Synthesis and Judgement: Ultimately, while the Red Scare was rooted in a factual security crisis—proven by the reality of Soviet espionage rings—it resulted in a disproportionate national hysteria. The government’s reaction went beyond legitimate counter-intelligence; by executing Ethel Rosenberg on weak evidence and purging thousands of citizens based on ideology rather than action, the US authorities eroded the very democratic freedoms they claimed to be protecting. The "security" benefit of uncovering a few genuine spies was outweighed by the lasting damage to civil liberties and the "chilling effect" on American political life.

The Rise and Downfall of McCarthyism

How does a single politician manage to terrify an entire nation's government without providing concrete evidence? In February 1950, Republican Senator Joseph McCarthy claimed to possess a list of 205 (later revised to 57) communists working in the State Department.

This sparked the era of McCarthyism—making public accusations of disloyalty with little to no evidence. McCarthy led "witch hunts" as chair of the Senate Permanent Subcommittee on Investigations. In 1950, Congress passed the McCarran Internal Security Act, overriding Truman's veto (who called it a "mockery of the Bill of Rights"), and later formally outlawed the Communist Party in 1954.

The Three Pillars of McCarthy's Downfall (1954):

1. Visibility: McCarthy made the fatal error of attacking the US Army. During the 1954 Army-McCarthy hearings, 20 million television viewers witnessed his aggressive, bullying tactics first-hand.
2. Media: Highly respected journalist Edward R. Murrow openly exposed McCarthy's lack of evidence on the television program See It Now.
3. Institution: By attacking the military, he turned President Eisenhower and fellow politicians against him. In December 1954, the Senate voted for Censure, issuing a formal statement of severe disapproval that destroyed his political power.