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from Wikipedia)
On May 4, 1970, thirteen students were shot, four fatally, at Kent State University in Ohio during a protest of the Vietnam War and the incursion into Cambodia. As a show of sympathy for the dead students, then-Republican Mayor of New York City John Lindsay ordered all flags at New York City Hall to be flown at half-staff the same day.
The Hard Hat Riot occurred on May 8 1970 in Lower Manhattan. The riot started about noon when about 200 construction workers mobilized by the New York State AFL-CIO attacked about 1,000 high school and college students and others protesting the Kent State shootings, the American invasion of Cambodia and the Vietnam War near the intersection of Wall Street and Broad Street. The riot, which spread to New York City Hall, lasted little more than two hours. More than 70 people were injured, including four policemen. Six people were arrested.
At 7:30 am on May 8, several hundred anti-war protesters (most of them high school and college students) began holding a memorial at Broad and Wall Streets for the four dead students at Kent State. By late morning, the protesters—now numbering more than a thousand—had moved to the steps of Federal Hall, gathering in front of the statue of George Washington which tops the steps. The protesters demanded an end to the war in Vietnam and Cambodia, the release of "political prisoners" in the United States, and an end to military-related research on all university campuses.
At five minutes to noon, about 200 construction workers converged on the student rally at Federal Hall from four directions. Nearly all the construction workers carried American flags and signs that read "All the way, USA," and "America, Love it or Leave it." Their numbers may have been doubled by others who had joined them as they marched toward Federal Hall. A thin line of police formed to separate the construction workers from the anti-war protesters. At first, the construction workers only pushed but did not break through the police line. After two minutes, however, the workers broke through the police line and began chasing students through the streets. The workers chose those with the longest hair and beat them with their hard hats and otherwise. Attorneys, bankers and investment analysts from nearby Wall Street investment firms tried to protect many of the students but were themselves attacked. Onlookers reported that the police stood by and did nothing.
Some of the construction workers and counter-protesters moved across City Hall Park toward New York City Hall. They mounted the steps, planted their flags at the top of the steps, then attempted to gain entrance to City Hall. Police on duty at City Hall initially barred them, but soon the mob pushed past these guards. A few workers entered the building. A postal worker rushed onto the roof of City Hall and raised the American flag there to full mast. When city workers lowered the flag back down to half-mast, a large number of construction workers stormed past the police. Deputy Mayor Richard Aurelio, fearing the building would be overrun by the mob, ordered city workers to raise the flag back to full mast.
Rioting construction workers also attacked buildings near City Hall. They ripped the Red Cross and Episcopal Church flags down from a flag pole at nearby Trinity Church. One group invaded a nearby Pace University building, smashing lobby windows with clubs and crowbars and beating up students.
More than 70 people were injured, including four policemen. Most of the injured required hospital treatment. Only six people were arrested.[
During a press conference that evening, President Nixon tried to defuse the situation before tens of thousands of students arrived in Washington, D.C. for a scheduled protest rally the next day. Nixon said he agreed with everything the protesters were trying to accomplish, and defended the recent U.S. troop movements into Cambodia as aiding their goal of peace.[2][7][9]
Mayor Lindsay severely criticized the police for their lack of action. Police Department organization leaders later accused Lindsay of "undermining the confidence of the public in its Police Department" by his statements, and blamed the inaction on inadequate preparations and "inconsistent directives" in the past from the Mayor's office.
On May 11, Brennan and officials of other unions said that the confrontation had been a spontaneous reaction by union workers "fed up" with violence and flag desecration by antiwar demonstrators, and denied that anything except fists had been used against the demonstrators. Brennan said that telephone calls and letters to the unions were 20 to 1 in favor of the workers. It was generally believed that the action by construction workers was not premeditated, though one man claimed to have seen suited men directing the workers.
Several thousand construction workers, longshoremen and white-collar workers protested against the mayor on May 11, holding signs reading "impeach the Red Mayor" and chanting "Lindsay is a bum". They held another rally May 16, carrying signs calling the mayor a "rat", "Commy rat" and "traitor". Lindsay described the mood of the city as "taut". The rallies culminated in a large rally on May 20 in which an estimated 150,000 construction and other workers peacefully marched through the streets of downtown New York City. Workers in the surrounding buildings showed their support by showering the marchers with ticker tape.
