Political and anti-government activism is nothing new in the United States. In 1886, eight labor radicals bombed Haymarket Square in Chicago, killing seven and injuring 70. Labor radicals in 1910 were also responsible for the bombing of the Los Angeles Times building in California, which killed 20. Anarchists were suspected when a bomb went off on Wall Street in New York City in 1920. The blast killed 34 people and injured more than 200.